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Prove that (cotA-cosA)/(cotA+cosA)=(cose...

Prove that `(cotA-cosA)/(cotA+cosA)=(cosecA-1)/(cosecA+1)`

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Prove that (cotA-cosA)/(cotA+cosA)=(c o s e cA-1)/(c o s e cA+1) .

Prove that (cosecA)/(cosecA-1)+(cosecA)/(cosecA+1)=2sec^2A .

Prove that (cosecA+cotA)/(cosecA-cotA)=(cosecA+cotA)^2 .

Prove that : (sinA-cosA)(cotA +tanA)=secA-"cosec"A

Prove that : (sinA-cosA)(cotA +tanA)=secA-"cosec"A

Prove that (cosA-sinA+1)/(cosA+sinA-1) = cosecA+cotA

Prove that (1+cosA)/(1-cosA)=("cosec" A+cotA)^(2)

Prove that 1/(cosecA+cotA)=(cosecA-cotA) .

"(cotA+cosecA-1)"/"(cotA-cosecA+1)"=?