For all real values of `x ,cotx-2cot2x` is equal to a.`tan2x` b. `t a n x` c. ` cot3x` d. none of these

The value of cotx+cot(60^@+x)+cot(120^@+x) is equal to

int ( x + cotx ) cot^2x dx

Evaluate: int(cotx+x)cot^2xdx

sin(cot^(-1)(tan(cos^(-1)x))) is equal to a) x b) sqrt(1-x^2) c) 1/x d) none of these

The value of tan(pi+x)tan(pi-x)cot^(2)x is

Solve 2 cot 2x -3 cot 3x = tan 2x .

For all real value of x , the maximum value of the expression x/(x^2-5x+9) is 1 (b) 45 (c) 90 (d) None of these

The value of 2tan^(-1)(cos e ctan^(-1)x-tancot^(-1)x) is equal to (a) cot^(-1)x (b) cot^(-1)1/x (c) tan^(-1)x (d) none of these

If tan(cotx)=cot(tanx), then sin2x is equal to

The value of lim_(x to 0) ((1)/(x^(2)) - cot x) equals