If `(cos^2x+1/(cos^2x))` `(1+tan^2 2y)(3+sin3z)=4,` then `x` is an integral multiple of `pi` `x` cannot be an even multiple of `pi` `z` is an integral multiple of `pi` `y` is an integral multiple of `pi/2`

In hydrogen atom which quantity is integral multiple of (h)/(2 pi)

A/2 is not an odd multiple of (pi)/(2) ,then tan(A/2)=

The function f(x) = sin x-x cos x is: (A).maximum or minimum for all integral multiple of pi (B) maximum if x is an odd positive or even negative integral multiple of pi (C) minimum if x is an even positive or odd negative integral multiple of pi (D) None of these

If for complex numbers z_1 and z_2, |z_1+z_2|=|z_1|=|z_2| then argz_1-argz_2= (A) an even multiple of pi (B) an odd multiple of pi (C) an odd multiple of pi/2 (D) none of these

If alpha is not an integral multiple of pi , then : lim_(x to alpha) ((sin x)/(sin alpha))^(1/(x-alpha) )=

f(x)=(cos x)/([2(x)/(pi)]+(1)/(2)) where x is not an integral multiple of pi and [.] denotes the greatest integer function,is (a)an odd function (b)an even function (c)neither odd nor even (d)none of these

If dy/dx+3/cos^2xy=1/cos^2x,x in((-pi)/3,pi/3)and y(pi/4)=4/3," then "y(-pi/4) equals

If log_((1)/(sqrt(2)))sin x>0,x in[0,4 pi], then the number values of x which are integral multiples of (pi)/(4), is