Tutoring with Kartik Mandal

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URL stands for Universal Resource Locator

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Ganga

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The highest mountain peak of india is Kangchenjunga.

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Yangtze River

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Andes

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Netaji Subhas chandra bose

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soln.   1/sin10 - √3cos10

=> cos10- √3sin10 / Sin10  cos10             {take LCM}

=> 2[ cos10- √3 sin10 / 2sin10cos10 }      {multiply and divide 2 to nr n dr}

=> 2x2[ 1/2 cos10 - √3/2 sin10 / sin20 ]     { use identity sin2A= 2sinAcosA to Dr and again multiply n divide 2 to Nr}

=> 4 [ sin30 cos10 - cos30 sin10 / sin20 ]    {use standard angle 1/2= sin 30 n √3/2= cos30 }

=> 4 [sin(30-10) / sin20 ]                             {use identity sin(A-B)= sinAcosB-cosAsinB }

=> 4 x sin20/sin20

=>  4x 1= 4  ans.

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Vedic Mathematics is a collection of Techniques/Sutras to solve mathematical arithmetics in easy and faster way. It consists of 16 Sutras (Formulae) and 13 sub-sutras (Sub Formulae) which can be used for problems involved in arithmetic, algebra, geometry, calculus, conics.

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Q is the total electric charge passed through the substance in coulombs. F = 96485 C mol−1 is the Faraday constant. M is the molar mass of the substance in grams per mol. z is the valency number of ions of the substance (electrons transferred per ion).

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I. An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force

II. Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

III. For every action there is an equal and opposite re-action.