Question

what is the value of sin^2+1/1+tan^2​

Answer 1

sin^2+1/1+tan^2A

sin^2+1/1+sin^2/cos^2

sin^2+1/cos^2+sin^2/cos^2

sin^2+1/1/cos^2

sin^2+1/1×cos^2/1

sin^2+1 /1 × sin^2-1/1. (by identity

(sin^2)2-1^2

sin^4 - 1

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