If A =30 and B =60. verifiy that 2 sin A cosA =2tanA/1+tan²A

Step-by-step explanation:

It's given that A = 30° . Lets find the sin , cos & tan of A

⇒

⇒

⇒

Lets solve the LHS (Left Hand Side) :-

Now lets solve the RHS (Right Hand Side) :-

∴ LHS = RHS ( Proved )

there is no points to select.

step-by-step explanation:

60: 45 =12: 9 =4: 3 so the answer is 4: 3