If sec 4A = cosec (A − 20°), where 4A is an acute angle, find the value of A.

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Solution

Given that:

, then we have to find the value of A

Since it is given that the angle 4A is acute angle, therefore we can apply the identity

Therefore the given equation can be written as

Hence the value of A is 22°

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Similar questions

sec 4 A = cosec (A - 20^{\circ})

4 A

A

s e c 4 A = c o s e c (A - 20^{\circ})

If sec4A = cosec (A – 20^o), where 4A is an acute angle.

Find the value of A.

s e c 4 A = c o s e c (A - 20^{\circ})

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