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The set of values of 'a' for which x^2-a...

The set of values of 'a' for which `x^2-ax+sin^-1(sin4)gt0 forallx in R` is

A

R

B

(-2,2)

C

`phi`

D

none of these

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The correct Answer is:
C
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PATHFINDER-QUADRATIC EQUATION AND EXPRESSION-QUESTION BANK
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  7. If exp{(sin^2 x+sin^4 x+sin^6 x+...)In2} satisfies the quadratic equat...

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  8. The number of values of the triple (a,b,c) for which a coss 2x+bsin^2 ...

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  16. If roots of x^2-(a-3)x+a=0 are such that both of them is greater than ...

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  19. If p and q are odd integers,then the equation x^2+2px+2q=0

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  20. If x^2+mx+1=0 and (b-c)x^2+(c-a)x+(a-b)=0 have both roots common,then

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