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The set of all values of a for which the function `f(x)=(a^2-3a+2)(cos^2\ x/4-sin^2\ x/4)+(a-1)x+sin1` does not possess critical points is (A) `[1,oo)` (B) `(0,1) uu (1,4)` (C) `(-2,4)` (D) `(1,3) uu (3,5)`

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The correct Answer is:
A, B, C
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  15. If f(x) = x^(3) + ax^(2) + bx+c = 0 has three distinct integral roots ...

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  16. Let x and y be positive real numbers such that y^(3) + y le x -x^(3) ...

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  17. Match the following : {:("List - I " , " List - II") ,("(P) If " x^(...

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  18. Which of the following options is the only Correct combination ?

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  19. Which of the following options is the only Correct combination ?

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  20. Which of the following options is the only Correct combination ?

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