Hello Bhumi
We use trigonometry formula
And we get
2 cos x cos 3x = cos 2x + cos 4x
After that, I need to see the options.. can you show me the options?
Written on March 23, 2020, 4:28 p.m.
Hello Bhumi
We use trigonometry formula
And we get
2 cos x cos 3x = cos 2x + cos 4x
After that, I need to see the options.. can you show me the options?
Written on March 23, 2020, 4:28 p.m.