In `DeltaABC`, prove that `"cosec"(A)/(2)+"cosec"(B)/(2)+"cosec"(C)/(2) ge 6` .

"cosec"^(-1)(2)

Prove that sec^(2)A+"cosec"^(2)A=sec^(2)A"cosec"^(2)A .

For triangle ABC prove that sec((A+B)/2)="cosec"C/2

In DeltaABC , 1/a,1/b,1/c are in A.P. prove that "cosec"^(2)A/2, "cosec"^(2)B/2, "cosec"C/2 are also in A.P.

Prove that : ("cosec"A+1)/("cosec"A-1)=secA+tanA

Prove that: sec^(2)x+"cosec"^(2)xge4

In a triangle ABC, prove that (b + c)/(a) le cosec.(A)/(2)

prove that tan A+cot A=2 cosec 2A

Prove that : (sec^(2)A-1)("cosec"^(2)A-1)=1

Prove that: cotA-cot2A="cosec"2A