If sec 4A=cosec (A-20°) than A equal
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sec 4A = cosec (A-20°)
cosec(90°-4A) = cosec (A-20°)
Comparing angles,
90-4A = A-20
4A+A = 90+20
5A = 110
A = 110 / 5
A = 22°
cosec(90°-4A) = cosec (A-20°)
Comparing angles,
90-4A = A-20
4A+A = 90+20
5A = 110
A = 110 / 5
A = 22°
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