If `int_0^oo(cosx)/xdx=(pi)/2` then `int_0^oo(cos^3x)/xdx` is equal to

If int_0^oo(sinx)/xdx=pi/2,t h e nint_0^oo(sin^3x)/x dx is equal to (a)pi/2 (b) pi/4 (c) pi/6 (d) (3pi)/2

If int_0^oosinx/xdx=pi/2 , then int_0^oosin^3x/xdx is equal to

If int_0^oosinx/xdx=pi/2 , then int_0^oosin^3x/xdx is equal to

int_0^pi sin^2xcos^3xdx is equal to :

int_0^pi sin^3xcos^7xdx is equal to :

int_0^pi sin^3xcos^5xdx is equal to :

"int_0^pi cos^(2)xdx

If int _(0)^(oo) (cos x)/(x ) dx =pi/2 , then int _(0)^(oo) (cos ^(3) x )/(x) dx is equals to:

If int _(0)^(oo) (cos x)/(x ) dx =pi/2 , then int _(0)^(oo) (cos ^(3) x )/(x) dx is equals to: