Question

If 2 = cot ( − 12degree), where 2A is an acute angle, then the value of A​

Answer 1

Answer:

A=34⁰

Step-by-step explanation:

tan2A=cot(A−12⁰) (given)

⇒cot(90⁰−2A)=cot(A−12⁰)

⇒(90⁰−2A)=(A−12⁰)⇒

A+2A=90⁰+12⁰

⇒A=34⁰

Answer 2

Answer:

tan2A=cot(A−12o) (given)

⇒cot(90o−2A)=cot(A−12o)

⇒(90o−2A)=(A−12o)⇒A+2A=90o+12o⇒A=34o