" (6."4-x-5x^(2)=0

Solve the equations: x^(4)-5x^(2)+6=0 .

Write the following sets in the roaster from. F= {x"/"x^(4)-5x^(2)+6=0, x in R}

(x^(2)-6x+9)/(5-4x-x^(2))>=0

Solve the equation x^(4)-5x^(2)-6x-5=0

The transformed equation of x^4-6x^(2)+5x+8=0 ,by eliminating second term is

Prove that, lim_(xtooo)(4x^(3)-5x^(2)+6x+9)/(3x^(4)+4x^(2)-11)=0

Find the nature of the roots of the following quadratic equations: (i) 2x^(2)-8x+5=0" "(ii)" "3x^(2)-2sqrt(6)x+2=0 (iii) 5x^(2)-4x+1=0" "(iv)" "5x(x-2)+6=0 (v) 12x^(2)-4sqrt(15)x+5=0" "(vi)" "x^(2)-x+2=0

The biquadratic equation, two of whose roots are 1+i , 1-sqrt(2) is A) x^(4)-4x^(3)+5x^(2)-2x-2=0 B) x^(4)-4x^(3)-5x^(2)+2x+2=0 C) x^(4)+4x^(3)-5x^(2)+2x-2=0 D) x^(4)+4x^(3)+5x^(2)-2x+2=0

Solved the following inequations {:((i), (x-5)(x+9)(x-8)lt0,(ii),x^(4)-5x^(2)+4lt0,(iii),(x^(2)-5x+6)/(x^(2)+x+1)lt0):}