Question

sin3x/ 1+2cos2x is equal to​

Answer 1

Answer:

Step-by-step explanation:

( sin 3x ) / ( 1 + 2 cos 2x )  

= ( 3 sin x - 4 sin³ x ) / [ 1 + 2 ( 1 - 2 sin² x ) ]  

= sin x ( 3 - 4 sin² x ) / ( 3 - 4 sin² x )  

= ( sin x )