" 15."(sin A)/((sec A+tan A-1))+(cos A)/((cosec A+cot A-1))=1

Prove that (sin A)/(sec A + tan A -1)+ (cos A)/("cosec "A +cot A-1)=1

(sin A)/(sec A+tan A-1)+(cos A)/(cos ecA+cot A-1)=1

7. (sin A+cos A)(cot A+tan A)=sec A+cosec A

Prove that (i) (tan A+ sin A)/(tan A- sin A)= (sec A+1)/(sec A-1) (ii) (cot A- cos A)/(cot A+ cos A)= ("cosec" A-1)/("cosec" A+1)

(1+tan A)/(sin A)+(1+cot A)/(cos A)=2(sec A+cosec A)

(sec A (sec A + tan A)(1-sin A))/ ((cosec^2 A-1)sin^2 A) is equal to: (sec A (sec A + tan A)(1-sin A))/ ((cosec^2 A-1)sin^2 A) का मान क्या होगा ?

sin A(1+tan A)+cos A(1+cot A)=sec A+cosec A

sin A(1+tan A)+cos A(1+cot A)=sec A+cos ecA

sec^(2) (tan^(-1) 4) + cosec^(2) (cot ^(-1) 3) =?

Prove that ( "cosec" A - sin A)(sec A- cos A)=(1)/((tan A+ cot A)).