What is $cos^2theta-sectheta$ in terms of $sintheta$ ?

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Answer 1 · 2016-05-01T07:47:20

$cos^2theta-sectheta=1-sin^2theta-1/sqrt(1-sin^2theta)$

$cos^2theta-sectheta$

= $1-sin^2theta-1/costheta$

= $1-sin^2theta-1/sqrt(cos^2theta)$

= $1-sin^2theta-1/sqrt(1-sin^2theta)$

What is cos^2theta-sectheta cos^2theta-sectheta in terms of sinthetasintheta?