Find the value of `x` for which `3cosx=x^2-8x+19` holds good.

Find the values of x for which 3costheta=x^2-8x+19 holds good.

Find the set of value of x for which the equation cos^(-1) x + cos^(-1) ((x)/(2) + (1)/(2) sqrt(3 -3x^(2))) = (pi)/(3) holds goods

Find the values of 'm' for which (m2)x^(2)+8x+m+4>0 for all real x .

Find the value of x if 2^(2x-1)=8^(x-3)

Find the value of X: 8x^(2)+10x+3=0

38.Find the value of a for which the fraction: (x^(3)-ax^(3)+19x-a-4)/(x^(3)-(a+1)x^(2)+23x-a-7) admits of reduction,Reduce it to its lowest terms.

the number of real values of x for which the equality holds good |3x^(2)+12x+6|=5x+16 holds good is

Find the values of a for which all the roots of the euation x^(4)-4x^(3)-8x^(2)+a=0 are real.

Find the value of m for which (2x-1) is a factor of (8x^(4)+4x^(3)-16x^2+10x+m) .

Find the value of x for which (8x+4),(6x-2) and (2x+7) are in A.P.