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intrigonometry

Prove that: sin² 6x-sin² 4x=sin 2x sin 10x

Solution : we have, sin² 6x-sin² 4x= sin(6x+4x) sin(6x-4x) [Using sin²A-sin²B=s…

intrigonometry

Solution : Using sin²x +cos²x=1 cos² 2x - cos² 6x ={1-sin²2x}-{1-sin² 6x} = si…

inPractice-Question

Solution : We have, Let y = sin (x² + 1). Putting u=x² + 1, we get y = sin u an…

inChemistry

The first real breakthrough in the classification of elements was provided by R…

inChemistry

Explanation of Limitations of Mendeleev's Periodic Table In the Modern peri…

inMath

If x=a(θ+sinθ) and y=a(1-cosθ) then dy/dx equal to ? Solution : Given, x= a(θ +…