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If alpha be a repeated root of a quadra...

If `alpha ` be a repeated root of a quadratic equation f(x) = 0 and A(x),B(x) , C(x) be polynomials of degree 3,4,5 respectively , then `F(x)=|(A(x),B(x),C(x)),(A(alpha),B(alpha),C(alpha)),(A^1(alpha),B^1(alpha),C^1(alpha))|`

A

`f(x)`

B

`alpha f (x)`

C

`xf(x)`

D

none

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DIPTI PUBLICATION ( AP EAMET)-MATRICES-EXERCISE 1B MCQ (DETERMINANTS)
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  14. If f(x)=|(x^(n),sinx,cosx),(n!,sin(npi//2),cos(npi//2)),(a,a^(2),a^(2)...

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  15. If f(x)=|(sec^(2)x,1,1),(cos^(2)x,cos^(2)x,cosec^(2)x),(1,cos^(2)x,cot...

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  16. If f(x)=|(secx, cosx, sec^(2)x+cot x cosecx),(cos^(2)x,cos^(2)x,cosec^...

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  17. If f(x)=|(cosx, x,1),(2sinx,x^(2),2x),(tanx,x,1)| then Lt(xto0)(f'(x))...

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