Verify the given the trigonometric identities


Question:

Verify the given the trigonometric identities

The trigonometry identities to be proved:

1) cos(4x) = 1 - 8sin^2(x) + 8sin^4(x)

2) tan(4x) = [4tan(x) - 4tan^3(x)]/[1 - 6tan^2(x) + tan^4(x)]

3) 2cos(4x)sin(2x) = 2sin(3x)cos(3x) - 2sin(x)cos(x)

4) 2sin(x)sin(2x) = 4cos(x)sin^2(x)

5) cos(x+y)cos(x-y) = cos^2(x) + cos^2(y) - 1

6) cos(x+y)sin(x-y) = sin(x)cos(x) - sin(y)cos(y)

Solution Preview :

Prepared by a verified Expert
Mathematics: Verify the given the trigonometric identities
Reference No:- TGS01939161

Now Priced at $20 (50% Discount)

Recommended (99%)

Rated (4.3/5)