Question

Tan (a+2b)=1/2,tan2(a-b)=1/3 ,find a

Answer 1

Tan (a+2b)=1/2,tan2(a-b)=1/3 ,find a

Ans:-

tan(a+2b)

Answer 2

Answer:

Tan3A=tan[(A+2B)+2(A-B)]

Tan3A=tan((A+2B)+tan2(A-B)/1-tan(A+2B)tan2(A-B)

Tan3A=1/2+1/3/1-1/2×1/3

Tan3A=5/6/5/6=1

Tan3A =tan45

3A=45

A=15

Tan3A

Step-by-step explanation: