Question

If cos(3A+B)=1/2 and sin(3A+B)=1/2 then find the value of tan3A+cot3A?

Anyone can solve this sum.
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Answer 1

Explanation:

sin(3a-b) = 1/2

3a-b = 30…………….1

cos(3a+b) = 1/2

3a+b = 60……………2

Adding (1) and (2) we get a=15 and substituting value of a in any eqn we get b=15.

So tan3a=tan45 and cot3a =tan45

tan45 + cot45 = 1+1 =2

Hipe this helps you!!

Answer 2

here is ur answer...thnkuh