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Prove that: (tantheta)/(1-cottheta)+(cot...

Prove that: `(tantheta)/(1-cottheta)+(cottheta)/(1-tantheta)=1+secthetacos e ctheta`

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tantheta /(1-cottheta ) + cottheta/(1-tan theta)= 1+sectheta*cosectheta

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Prove the following identities: (sintheta)/(1-costheta)+(tantheta)/(1+costheta)=secthetacos e ctheta+cottheta

Prove that: ((1+tan^2theta)cottheta)/(c o s e c^2theta)=tantheta

i) Prove that: (cot^(2)A)/(1-"cosec"A)^(2)=(1+sinA)/(1-sinA) ii) Prove that: (costheta)/(1-tantheta)+(sintheta)/(1-cottheta)=sintheta+costheta

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