Write the value of `Sec theta(1-sin theta)(1+sin theta)
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Step-by-step explanation:
sec theta(1-sin theta)(1+sin theta)
=》sec theta(1-sin²theta)
=》sec theta×cos²theta (using: sin²theta+cos²theta=1)
=》sec theta×1/sec²theta
=》1/sec theta
=》cos theta
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