which integers can not lie in the range of `y = tanx/(tan3x)`

If y=(tanx)/(tan3x), then

If y=(tanx)/(tan3x), then

The number of integers which does not lie in the range of function, f(x)=(x^(2)-5x+6)/(x^(2)-3x+2) is

Sum of all integers which lie in the range of f(x)=(x^(2)+x+2)/(x^(2)+x+1) is

find the value of - y=tan^-1((1+tanx)/(1-tanx))

Evaluate int tanx tan 2x tan 3x dx .

Evaluate int tanx tan 2x tan 3x dx .

The range of the function: f(x) =(1-tanx)/(1+tanx) is:

The number of integral points (x,y) (i.e, x and y both are integers) which lie in the first quadrant but not on the coordinate axes and also on the straight line 3x + 5y = 2007 is equal to