If tan 2A=cot (A-18%),where 2A is an acute angle , then find the value of angle A.
Answers
Answered by
7
Answer:
tan2A=cot(A-18)
cot(90-2A) = cot(A-18)..........(1)
Comparing both values in eq (1)
90-2A = A-18
108 = 3A
A = 36
Hope this will help you.
Answered by
3
Answer:
A=36 degree
Step-by-step explanation:
tan 2A= Cot(A-18 deg)
tan 2A= Tan (90-(A-18deg))
Tan 2A= Tan (90-A+18deg)
Tan 2A= Tan(108 deg - A)
2A=108-A
3A=108
A=108/3
A=36 degree
Similar questions