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IF a root of the equation a(1) x ^(2) +b...

IF a root of the equation `a_(1) x ^(2) +b_(1)x + c_(1)=0` is the reciprocal of the root of the equation `a _(2) x ^(2) + b_(2) x +c_(2) =0,` then :

A

`(a_(1)a _(2) -c_(1) c _(2)) ^(2) =(a_(1) b _(2) -b_(2) c _(2)) (a_(2) b _(1) -b_(2) c _(1))`

B

`(a_(1)a_(2) -_(1)b_(2)) ^(2) = (a _(2)b_(2)-b_(1)c _(2)) (a_(2) b _(1) - b _(2) c _(1))`

C

`(b_(1)c_(2) -b_(2)c_(1)) ^(2) = (a_(1)b_(2) +b_(1) c _(2)) (a_(2)b_(1) -b _(2) c _(1)) `

D

`(b_(1) c _(2) -b_(2) c_(1))^(2) = (a _(1)b_(2)+b_(1) c _(2)) (a_(1)b_(1) =b_(2)c _(1))`

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VIKAS GUPTA (BLACK BOOK) ENGLISH-QUADRATIC EQUATIONS -EXERCISE (SUBJECTIVE TYPE PROBLEMS)
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  2. Let f (x) =ax ^(2) + bx+ c where a,b,c are integers. If sin ""pi/7. si...

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  3. Let a, b, c, d be distinct integers such that the equation (x - a) (x ...

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  6. If the equation (m^(2) -12 )x^(4) -8x ^(2)-4=0 has no real roots, then...

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  7. The least positive integral value of 'x' satisfying (e^x-2)(sin(x+pi/...

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  10. The number of real values of 'a' for which the largest value of the fu...

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  11. The number of all values of n, (whre n is a whole number ) for which t...

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  12. The number of negative intergral values of m for which the expression ...

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  13. If the expression a x^4+b x^3-x^2+2x+3 has remainder 4x+3 when divided...

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  14. The smallest value of k for which both roots of the equation x^(2)-8kx...

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  15. If x ^(2) -3x+2 is a factor of x ^(4) -px ^(2) +q=0, then p+q=

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  16. The expression x^2 + 2xy + ky^2 + 2x + k = 0 can be resolved into two ...

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  17. The curve y=(lambda=1)x^2+2 intersects the curve y=lambdax+3 in exactl...

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  18. Find the number of integral vaues of 'a' for which the range of functi...

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  19. When x ^(100) is divided by x ^(2) -3x +2, the remainder is (2 ^(k +1)...

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  20. Let p(x)=0 be a polynomial equation of the least possible degree, with...

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  21. The range of value's of k for which the equation 2 cos^(4) x - sin^(4...

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