[" (8) सिe wiry for "a+tan A+cos A)(sin A-cos A)],[quad =sin A tan A-cot A cos A]

(1 + cot A + tan A) (sin A-cos A) = sin A tan A-cot A cos A

Prove that :(1+cot A+tan A)(sin A cos A)=sin A tan A cot A cos A

Prove that : (1 + cot A + tan A) (sin A — cos A) = sin A tan A — cot A cos A.

Prove that : (1 + cot A + tan A) (sin A — cos A) = sin A tan A — cot A cos A.

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

Show that (cos A)/(1-tan A)+(sin A)/(1-cot A)=sin A +cos A

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

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

Prove the trigonometric identities: (1+cot A+tan A)(sin A-cos A)=(sec A)/(cos ec^(2)A)-(cos ecA)/(sec^(2)A)=sin A tan A-cot A cos A