(1)/(cos(x+a)cos(x+b))

If int(k)/(cos(x-a)cos(x-b))dx=log[(cos(x-a))/(cos(x-b))]+c , then k=

Prove that: (1)/(sin(x-a)cos(x-b))=(cot(x-a)+tan(x-b))/(cos(a-b))

If int (1)/(sin (x -a ) cos (x -b)) dx = A log | (sin (x -a))/( cos (x -b ))| + B. Then

(d)/(dx ) {Cos^(-1) ((a+b cos x )/(a cos x +b)) (a lt b )=

Prove that: 1/(sin(x-a)cos(x-b))=(cot(x-a)+"tan"(x-b))/(cos(a-b))

Find the derivatives of the function cos ^(-1) (( b + a cos x )/( a + b cos x )), (a gt 0, b gt 0)

pi is the Fundamental period of (A) (1+sin x)/(cos x(1+cos ecx)) (B) |sin x|+|cos x| (C) sin2x+cos2x (D) cos(sin x)+cos(cos x)

A: (d)/(dx ) {Tan ^(-1) ((a cos x + b sin x)/(b cos x - a sin x))=1 R: (d)/(dx) {Tan ^(-1) ((a cos f (x) +b sin f (x))/(b cos f (x) -a sin f (x)))}=f'(x)

If y = tan^(-1) ((a cos x - b sin x)/(b cos x + a sin x)) " then " (dy)/(dx) = ?