Prove the identity: sin² 0-cos²0 sin 0+ cos 0 = sin 0-cos0 -

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

A:

Q: 1-cos2x/1+sinx=sinx. Prove the identity

A:

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

A: To verify the equation

Q: sin4x sin2x=1/2(cos2x-cos6x). Prove the identity

A: Consider the given identity

Q: Find the value of cos 1- + 2 sin 1/2

A: value=?

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

A: cos2x -sin2x=2cos2x-1

Q: Calculate the value of expression: sin- cos--2· cos- • tan 5 2

A: Explanation of the answer is as follows

Q: sin (3pi/2 + theta) = -cos (theta)

A:

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…