How do you simplify $f(theta)=2tan2theta-3sin2theta+sec2theta$ to trigonometric functions of a unit $theta$ ?

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Answer 1 · 2016-05-02T12:46:12

$f(theta)=(4tantheta)/(1-tan^2theta)-6sinthetacostheta+1/(2cos^2theta-1)$

$f(theta)=2tan2theta-3sin2theta+sectheta$

or $f(theta)=2xx(2tantheta)/(1-tan^2theta)-3xx2sinthetacostheta+1/(cos2theta)$

or $f(theta)=(4tantheta)/(1-tan^2theta)-6sinthetacostheta+1/(2cos^2theta-1)$

How do you simplify f(theta)=2tan2theta-3sin2theta+sec2thetaf(theta)=2tan2theta-3sin2theta+sec2theta to trigonometric functions of a unit thetatheta?