यदि cote = THE FIG I (1 7 sin 0) (1 - sin ) (ii) cot (1 Hos O) (1 - cos ) 1-tan²A - -

If cot theta = (7) /(8) evaluate (i) (( 1 + sin theta ) (1 - sin ) theta ) /((1 + cos theta ) ( 1 - cos ) theta ) (ii) cot ^ 2 theta

sin cot ^ (- 1) cos tan ^ (- 1) 2

sin cot ^ (- 1) cos tan ^ (- 1) 2 =

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

cos [ tan^(-1){sin (cot^(-1)x)}] =

tan (cos ^(-1) x) = sin (cot ^(-1) ""(1)/(2))

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