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The equation whose roots are sec2α&cosec2α can be -

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Important Questions on Quadratic Equations

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If cosα is a root of the equation 25x2+5x-12=0,-1<x<0, then the value of sin2α is

A    1225

B -1225

C -2425

D 2425

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If the roots of the equation 1x+p+1x+a=1r are equal in magnitude and opposite in sign, then
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Graph of y=ax2+bx+c is given adjacently. What conclusions can be drawn from this graph -

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If x2+px+1 is a factor of the expression ax3+bx+c then -
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The set of values of ' a ' for which the inequality x-3ax-a-3<0 is satisfied for all x in the interval 1x3.
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Let px be the cubic polynomial 7x3-4x2+K. Suppose the three roots of px form an arithmetic progression. Then the value of k, is
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If the quadratic equation ax2+bx+6=0 does not have two distinct real roots, then the least value of 2a+b is 
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The value of ' a ' for which the expression y=x2+2aa2-3x+4 is perfect square, is