How do you simplify the expression $sectheta-sinthetatantheta$ ?

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Answer 1 · 2016-10-29T13:26:15

The expression $=costheta$

$sectheta-sinthetatantheta=1/costheta-(sinthetasintheta)/costheta$

$=(1-sin^2theta)/costheta$ but $(sin^2theta+cos^2theta=1)$

so finally we get $=cos^2theta/costheta=costheta$

Answer 2 · 2016-10-29T13:31:44

$=costheta$

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

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

$=(cos^2theta)/costheta$

$=costheta$

How do you simplify the expression sectheta-sinthetatanthetasectheta-sinthetatantheta?