SOLUTION: Prove each of the following trigonometric identities.
1) sin x sin 2x + cox x cos 2x = cos x
2) cot x = sin x sin (pi/2 - x) + cos^2 x cot x
3) 2 csc 2x = sec x csc x
Algebra ->
Trigonometry-basics
-> SOLUTION: Prove each of the following trigonometric identities.
1) sin x sin 2x + cox x cos 2x = cos x
2) cot x = sin x sin (pi/2 - x) + cos^2 x cot x
3) 2 csc 2x = sec x csc x
Log On
Question 1183638: Prove each of the following trigonometric identities.
1) sin x sin 2x + cox x cos 2x = cos x
2) cot x = sin x sin (pi/2 - x) + cos^2 x cot x
3) 2 csc 2x = sec x csc x Answer by MathLover1(20850) (Show Source):
