Question

prove this identity 3cos2x=2-sinx

Answer 1

K SO MAKE BOTH OF THEM EITHER SIN OR COS

Answer 2

...

Answer 3

THEN SIMPLIFY

Answer 4

FINE PUT IN TERMS OF TAN

Answer 5

CAUSE LYKE SIN/COS=TAN U NO

Answer 6

3cos( 2x)= 2-sin x
this equation is wrong it might missing something....

Answer 7

cos( 2x)= 1-2 sin^2 x

Answer 8

no it says to prove the identity