Question

if sec 4A = cosec(A-20), where 4A is an acute angle, find the value of A

Answer 1

Answer:

22

Step-by-step explanation:

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Answer 2

HEYA MATE !!

Sec 4A = cosec(A - 20)

cosec(90 - 4A) = cosec(A - 20)

As , (secA = cosec(90 - A ))

Comparing angles,

90 - 4A = A - 20

- 4A - A = - 20 - 90

- 5A = - 110

A = - 110/ - 5

A = 22° ( ans )

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