" (ii) "(tan A+cosec B)^(2)-(cot B-sec A)^(2)=2tan A cot B(cosec A+sec B)

(tan A+cos ecB)^(2)-(cot B-sec A)^(2)=2tan a cot B(cos ecA+sec B)

Prove the following identities: (1+tan A tan B)^(2)+(tan A-tan B)^(2)=sec^(2)A sec^(2)B(tan A+csc B)^(2)-(cot B-sec A)^(2)=2tan A cot B(csc A+sec B)

Prove (tan A + cos ecB) ^ (2) - (cot B-sec A) ^ (2) = 2tan A cot B (cos ecA + sec B)

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

" (i) "(1+sec A+tan A)(1-cosec A+cot A)=2

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

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