" 1."x^(4)-8x^(2)-9=0

If x=9 is the chord of contact of the hyperbola x^(2)-y^(2)=9 then the equation of the corresponding pair of tangents is (A)9x^(2)-8y^(2)+18x-9=0(B)9x^(2)-8y^(2)-18x+9=0(C)9x^(2)-8y^(2)-18x-9=0(D)9x^(^^)2-8y^(^^)2+18x+9=0'

If alpha,beta,gamma,delta are the roots of the equation 3x^(4)-8x^(3)+2x^(2)-9=0 then sum alpha beta=

int(1)/(x^(4)+8x^(2)+9)

Number of real solutions of x^(4)+8x^(2)+16=4x^(2)-12x+9

Sum and product of two zeroes of x^(4)-4x^(3)-8x^(2)+36x-9 are 0 and -9 respectively Find the sum and product of its other two zeroes.

The number of excluded values of (x^(3)+x^(2)-10x+8)/(x^(4)+8x^(2)-9) is ……………….

Irrational roots of the equaiton 2x^(4) + 9x^(3) + 8x^(2) + 9x + 2 = 0 are

x^(4)+8x^(3)+9x^(2)-8x-10=0 Solve for x

Simplify the following : 5x^(4) - 7x^(2) +8x - 1 +3x^(2) - 9x^(2) + 7 - 3x^(4)+11x - 2 +8x^(2)