Question

If tan 2 a=cot(a-18)

Answer 1

Answer:36

Step-by-step explanation:

tan 2a = cot (a-18)

Cot(90-2a)= cot (a-18)

Comparing both,

90-2a=a-18

90+18=a+2a

3a=108

a= 108÷3

a= 36