" 8.(i) "(cot A)/(1-tan A)+(tan A)/(1-cot A)=1+sec A*cosec A

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

(tan A+cot A)=(sec A*csc A)

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

Prove the following identities: (tan A)/(1-cot A)+(cot A)/(1-tan A)=1+tan A+cot A=1+sec A cos ecA

Prove that : (tan A)/ (1 - cot A) + (cot A)/ (1 - tan A) = sec A cosec A + 1

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

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

(1+tan A+sec A)(1+cot A-cosec A)=

Prove that : (sin A - cos A) (1 + tan A + cot A) = (sec A)/ (cosec^(2) A) - (cosec A)/ (sec^(2) 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)