show that cos square theta off one plus tan square theta is equal to one
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1
Answer:
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5
Answer:
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Explanation:
To Prove:
cos^2(1+tan^2)=1
LHS:
cos^2(1+tan^2)
=cos^2(1+sin^2/cos^2)
=cos^2[(cos^2+sin^2)/cos^2]
=cos^2(1/cos^2)
=1
=RHS
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