If `cos^(4)x` is expressed in the form `a cos4x+b cos2x+c` where a,b and c are constants then the value of `(a+b+c)` ,is equal

Let cos^(4)x=a cos(4x)+b cos(2x)+c where a,b,c are constants then

If int ( cos x - sin x )/( sqrt(8 - sin 2x ))dx = a sin^(-1) (( sin x + cos x )/(b)) +c , where c is a constant of integration, then the ordered pair (a, b) is equal to :

If a sin x+b cos(c+x)+b cos(c-x)=alpha, alpha gt a , then the minimum value of |cos c| is :

Form the differential equation of the family of curves y=A cos2x+B sin2x, where A and B are constants.

Let a,b and c be the sides of a Delta ABC. If a^(2),b^(2) and c^(2) are the roots of the equation x^(3)-Px^(2)+Qx-R=0, where P,Q&R are constants,then find the value of (cos A)/(a)+(cos B)/(b)+(cos C)/(c) in terms of P,Q and R.

In a Delta ABC, the value of (a cos A+b cos B+c cos C)/(a+b+c) is equal to

If lim_(x rarr0)(cos4x+a cos2x+b)/(x^(4)) is finite then the value of a,b respectively

In a triangle ABC,if (2(sin B-sin C))/(cos B+cos C)=(sin A)/(1-cos A) then the value of (b)/(c) is equal to

The integral I=int(sin(x^(2))+2x^(2)cos(x^(2)))dx (where =xh(x)+c , C is the constant of integration). If the range of H(x) is [a, b], then the value of a+2b is equal to

If lim_(x rarr0)((cos4x+a cos2x+b)/(x^(4))) is finite then the value of a,b respectively is finite