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4+ tan sq x - sec sqx /cosec sq x​

Answer»

4+ tan SQ x - sec sq x /cosec sq x

4 + tan sq x - 1/cos sq x/1/SIN sq x

4 + tan sq x - sin sq x/cos sq x

4 + tan sq x - tan sq x = 4 (Sin sq x/Cos sq x = Tan sq x)

Therefore 4+ tan sq x - sec SQX /cosec sq x = 4



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