    ## Study Notes. Presentations. Videos.

### Collection of Study Notes, PowerPoint Presentations, and Videos  • • • # Video Lessons for Mathematics

• ## Kids Swimming Lesson

Kids swimming lesson
English, Mathematics, Zumba
• ## #69 CBSE | 2 Marks | If A (5, 2), B(2, – 2) and C(– 2, t) are the vertices of a right angled triangle with angle B = 90°. Then find the value of t. | Class X | IMP

If a (5, 2), b(2, – 2) and c(– 2, t) are the vertices of a right angled triangle with angle b = 90°. then find the value of t.
Mathematics
• ## #68 CBSE | 2 Marks | Find the middle term of the A.P. 6, 13, 20,……….., 216. | Class X | IMP

Find the middle term of the a.p. 6, 13, 20,……….., 216.
Mathematics
• ## #67 CBSE | 2 Marks | From a point T outside a circle of centre O, tangents TP and TQ are drawn to the circle. Prove that OT is the right bisector of line segment PQ. | Class X | IMP

From a point t outside a circle of centre o, tangents tp and tq are drawn to the circle. prove that ot is the right bisector of line segment pq.
Mathematics
• ## #66 CBSE | 2 Marks | Solve the following quadratic equation for x : 4x^2 – 4a^2 x + (a^4 – b^4) = 0. | Class X | IMP

Solve the following quadratic equation for x : 4x^2 – 4a^2 x + (a^4 – b^4) = 0.
Mathematics
• ## #65 CBSE | 2 Marks | In the given fig., AB is the diameter of a circle with centre O and AT is a tangent. If angle AOQ = 58°, find angle ATQ. | Class X | IMP

In the given fig., ab is the diameter of a circle with centre o and at is a tangent. if angle aoq = 58°, find angle atq.
Mathematics
• ## #64 CBSE | 2 Marks | Solve following quadratic equation for x: x^2–2ax–(4b^2–a^2)=0 | Class X | IMP

Solve the following quadratic equation for x : x^2 – 2ax – (4b^2 – a^2) = 0
Mathematics
• ## #63 CBSE | 2 Marks | If A(4, 3), B(– 1, y) and C(3, 4) are the vertices of a right triangle ABC, right-angled at A, then find the value of y.| Class X | IMPORTANT

If a(4, 3), b(– 1, y) and c(3, 4) are the vertices of a right triangle abc, right-angled at a, then find the value of y.
Mathematics
• ## #62 CBSE | 2 Marks | Find the relation between x and y if the points A(x, y), B(– 5, 7) and C(– 4, 5) are collinear. | Class X | IMPORTANT

Find the relation between x and y if the points a(x, y), b(– 5, 7) and c(– 4, 5) are collinear.
Mathematics
• ## #61 CBSE | 2 Marks | The points A(4, 7), B(p, 3) and C(7, 3) are the vertices of a right triangle, right-angled at B. Find the value of p. | Class X | IMPORTANT

The points a(4, 7), b(p, 3) and c(7, 3) are the vertices of a right triangle, right-angled at b. find the value of p.
Mathematics
• ## #60 CBSE | 2 Marks | In an A.P., if S5 + S7 = 167 and S10 = 235, then find.... | Class X | IMPORTANT

In an a.p., if s5 + s7 = 167 and s10 = 235, then find the a.p., where sn denotes the sum of its first n terms.
Mathematics
• ## #59 CBSE | 2 Marks | Solve the following quadratic equation for x 4x^2 + 4bx – (a^2 – b^2) = 0 | Class X | IMPORTANT

Solve the following quadratic equation for x 4x^2 + 4bx – (a^2 – b^2) = 0
Mathematics
• ## #58 CBSE | 2 Marks | In the given fig., a triangle ABC is drawn to circumscribe a circle of radius 3 cm, such that the segments BD and DC are respectively of lengths 6 cm and 9 cm. If the area of triangle ABC is 54 cm2, then find the lengths of sides AB a

In the given fig., a triangle abc is drawn to circumscribe a circle of radius 3 cm, such that the segments bd and dc are respectively of lengths 6 cm and 9 cm. if the area of triangle abc is 54 cm2, then find the lengths of sides ab and ac.
Mathematics
• ## #57 CBSE | 2 Marks | In the given figure, two tangents RQ and RP are drawn.... | Class X | IMPORTANT

In the given figure, two tangents rq and rp are drawn from an external point r to the circle with centre o. if angle prq = 120°, then prove that, or = pr + rq
Mathematics
• ## #56 CBSE | 2 Marks | Prove the following identity | Class X | IMPORTANT

#56 cbse | 2 marks | prove the following identity | class x | important
Mathematics
• ## #55 CBSE | 2 Marks | X and Y are points on the sides AB and AC respectively of a triangle ABC such that 𝑨𝑿/𝑨𝑩, AY =2 cm and YC = 6cm. Find whether XY is parallel to BC or not. | Class X | IMPORTANT

X and y are points on the sides ab and ac respectively of a triangle abc such that 𝑨𝑿/𝑨𝑩, ay =2 cm and yc = 6cm. find whether xy is parallel to bc or not.
Mathematics
• ## #54 CBSE | 2 Marks | Find whether the following pair of linear equations is consistent or inconsistent : 3x + 2y = 8 6x – 4y = 9 | Class X | IMPORTANT

Find whether the following pair of linear equations is consistent or inconsistent : 3x + 2y = 8 6x – 4y = 9
Mathematics
• ## #53 CBSE | 2 Marks | Explain why (17 × 5 × 11 × 3 × 2 + 2 × 11) is a composite number ? | Class X | IMPORTANT

Explain why (17 × 5 × 11 × 3 × 2 + 2 × 11) is a composite number ?
Mathematics
• ## #52 CBSE | 2 Marks | Show that 3√𝟕 is an irrational number | Class X | IMPORTANT

Show that 3√𝟕 is an irrational number.
Mathematics
• ## #51 CBSE | 2 Marks | How many terms of the A.P. 65, 60, 55,…..be taken so that their sum is zero? | Class X | IMPORTANT

How many terms of the a.p. 65, 60, 55,…..be taken so that their sum is zero?
Mathematics
• ## #50 CBSE | 2 Marks | How many terms of the A.P. 27, 24, 21, ... should be taken so that their sum is zero? | Class X | IMPORTANT

How many terms of the a.p. 27, 24, 21, ... should be taken so that their sum is zero?
Mathematics
• ## #49 CBSE | 2 Marks | In given fig., AP and BP are tangents to a circle with centre O, such that AP = 5 cm and angle APB = 60°. Find the length of chord AB. | Class X | IMPORTANT

In given fig., ap and bp are tangents to a circle with centre o, such that ap = 5 cm and angle apb = 60°. find the length of chord ab.
Mathematics
• ## #48 CBSE | 2 Marks | How many terms of the A.P. 18, 16, 14,……. be taken so that their sum is zero? | Class X | IMPORTANT

How many terms of the a.p. 18, 16, 14,……. be taken so that their sum is zero?
Mathematics
• ## #47 CBSE | 2 Marks | The x-coordinate of a point P is twice its y-coordinate. If P is equidistant from Q(2, – 5) and R(– 3, 6), find the coordinates of P | Class X | IMPORTANT

The x-coordinate of a point p is twice its y-coordinate. if p is equidistant from q(2, – 5) and r(– 3, 6), find the coordinates of p
Mathematics
• ## #46 CBSE | 2 Marks | In the given Fig., a circle is inscribed in a triangle ABC, such that it touches the sides AB, BC and CA at points D, E and F respectively. If the lengths of sides AB, BC and CA are 12 cm, 8 cm and 10 cm respectively, find the lengths

In the given fig., a circle is inscribed in a triangle abc, such that it touches the sides ab, bc and ca at points d, e and f respectively. if the lengths of sides ab, bc and ca are 12 cm, 8 cm and 10 cm respectively, find the lengths of ad, be and cf.
Mathematics
• ## #45 CBSE | 2 Marks | Find the ratio in which y-axis divides the line segment joining the points A(5, – 6) and B(– 1, – 4). Also find the coordinates of the point of division. | Class X | IMP Question

Find the ratio in which y-axis divides the line segment joining the points a(5, – 6) and b(– 1, – 4). also find the coordinates of the point of division.
Mathematics
• ## #44 CBSE | 2 Marks |If x = 𝟐/𝟑 and x = – 3 are roots of the quadratic equation ax2 + 7x + b = 0, find the values of a and b. | Class X | IMP Question

If x = 𝟐/𝟑 and x = – 3 are roots of the quadratic equation ax2 + 7x + b = 0, find the values of a and b.
Mathematics
• ## #43 CBSE | 2 Marks | Solve for x :√(𝟔𝒙+𝟕) - (2x – 7) = 0 | Class X | IMP Question

#43 cbse | 2 marks | solve for x :√(𝟔𝒙+𝟕) - (2x – 7) = 0 | class x | imp question solve for x : √(𝟔𝒙+𝟕) - (2x – 7) = 0
Mathematics
• ## #42 CBSE | 2 Marks | Solve for x : √(𝟐𝒙+𝟗) + x = 13 | Class X | IMP Question

Solve for x : √(𝟐𝒙+𝟗) + x = 13
Mathematics
• ## #41 CBSE | 2 Marks | In Fig., from an external point P, two tangents PT and PS are drawn to a circle with centre O and radius r. If OP = 2r, | Class X | IMP Question

In fig., from an external point p, two tangents pt and ps are drawn to a circle with centre o and radius r. if op = 2r,
Mathematics
• ## Compound Interest Trick Part 2

In this video we learn tricks and after watching this video c.i. is very easy for us.
Defence Exams, IBPS, Mathematics
• ## Compound Interest Trick Part 1

In this video we learn the most tough topic for students in easy manner or using trick. after watching this video compound interest is very easy for every students.
Defence Exams, IBPS, Mathematics Drop Us a Query