Verify the identity  Cos^2theta(Tan^2theta + 1)=1

Q: Verify the identity: (cos 4x - cos 2x)/(sin 2x - sin 4x) = tan 3x

A:

Q: tan2x(1+cos2x)=1-cos2x. Verify the identity

A: To verify the equation

Q: Show that os (2 tan~ r) COs

A: We have to prove that cos(2tan-1x)=1-x21+x2.

Q: find solution set of tan-1x-cot-1x=cos-1(2-x)

A:

Q: Verify identity cos2 x - sin2 x = 2 cos2 x - 1.

A: cos2x -sin2x=2cos2x-1

Q: sin' t – cos' t Prove tan?t – 1 cos? t

A:

Q: Find the exact Value of -1 Cos (tan'a + Sin ¹ 1/27) 13

A:

Q: Find if sin x +1= cos y

A: Given,           sinx+1=cosy

Q: how to verify  step by step cos2x/sin2x+sinx/cosx=csc2x

A: Given:

Q: Calculate tg/tan of 32 knowing that cos64= 0,44.

A: Given that

Q: Differentiate  cosx/x

A: The given function is f(x) =(cosx)/x       = x-1.cosx

Q: Verify identity cos2 x - sin2 x = 1 - 2 sin2 x.

A: The given trigonometric equation (identity) is: cos2x-sin2x=1-2sin2 x To verify this, take the left…

Q: Trigonometry Question

A: Here we use the following formula Area=θ360πr2

Q: cosx+1=sinx

A: