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

If y=(1+sin x-cos x)/(1+sin x+cos x), find (dy)/(dx)

Prove the following identities: (cos A)/(1-sin A)+(sin A)/(1-cos A)+1=(sin A cos A)/((1-sin A)(1-cos A))((1+cot A+tan A)(sin A-cos A)/(sec^(3)A-cos ec^(3)A)=sin^(2)A cos^(2)A

If (2sin A)/(1+sin A-cos A)=k, then (1+sin A-cos A)/(1+sin A) is

lim_ (x rarr0) (1 + sin x-cos x) / (1-sin x-cos x)

Prove that (1 + sin x-cos x) / (1 + sin x + cos x) + (1 + sin x + cos x) / (1 + sin x-cos x) = 2cos ecx

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

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

(d) / (dx) [sin ^ (- 1) ((sin a cos x) / (1-sin a cos x))] =

(1 + sin x-cos x) / (1 + sin x + cos x) = tan ((x) / (2))

If f(x) =(1+sin x - cos x)/(1-sin x - cos x ), x != 0 , is continuous at x = 0 , then f(0) = ………