Question

If cote 3 and @is acute angle, then find cosec e. 4​

Answer 1

Answer:

cosec(90 ∘  - 5A) = cosec(A -  30 ∘ )

90 ∘ - 5A = A -  30 ∘  6A = 120 ∘

A =  20 ∘

Answer 2

Step-by-step explanation:

sin(A−20 )=cos(4A)

sin(A−20 )=sin(90 −4A)

Hence

A−20 =90 −4A

5A=110

A=22