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`(sin5theta+sin2theta-sintheta)/(cos5theta+2cos3theta+2cos^2theta+costheta)` is equal to a.`t a ntheta` b. `costheta` c.`cottheta` d. none of these

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(sin5theta+sin2theta-sin theta)/(cos5theta+2cos3theta+2cos^(2)theta+costheta) is equal to

(sintheta+sin2theta)/(1+costheta+cos2theta) =

(sintheta+sin2theta)/(1+costheta+cos2theta)=?

(sin5 theta-2sin3 theta + sin theta) / (cos5 theta-cos theta) = tan theta

(sin3theta-cos3theta)/(sintheta+costheta)+1 =

costheta-cos2theta=sin3theta

int(costheta-cos2theta)/(1-cos theta)d theta=

Prove that: (sin^2theta)/(costheta)+ cos theta = sec theta.

If sintheta-costheta=0 , then sin^3theta+cos^3theta=?

If sin theta_1 + sin theta_2 + sintheta_3 =3 then cos theta_1 + cos theta_2 + costheta_3 is equal to

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  12. The maximum value of 1+sin(pi/4+theta)+2cos(pi/4-theta) for real value...

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  14. sum(r=1)^(n-1)cos^2((rpi)/n)

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