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If I vec(a)I = 4 and -3 le lamda le 2,t...

If I` vec(a)`I = 4 and `-3 le lamda le 2`,then I`lambda vec(a)`I lies in (A) [0,12] (B) [2,3] (C) [8,12] (D) [-12,8]

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII Boards-All Questions
  1. The function f(x) : (x-1)/(x( x^(2) -1)) is discontinuous at (a) exa...

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  2. The Integrating Factor of the differential equation x(dy)/(dx)-y=2x^2...

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  3. If I vec(a)I = 4 and -3 le lamda le 2,then Ilambda vec(a)I lies in ...

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  4. Differentiate sec^2 (x^2) with respect to x^2

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  5. If cos (sin^(-1)(2/sqrt(5)) + cos^(-1)x) = 0, then x is equal to A) ...

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  6. Evaluate : int(-pi/2)^(pi/2)xcos^2 xdx

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  7. The relation R in the set {1,2,3} given by R = {(1,2), (2,1),(1,1)} is...

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  8. The function f : R rarr [ -1,1 ] defined by f(x) = cos x is (a) both...

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  9. If the radius of the circle is increasing at the rate of 0.5 cm/s , th...

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  10. If y = f(x^2) and f'(x) = e^(sqrtx), then find (dy)/(dx)

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  11. A card from a pack of 52 cards is lost. From the remaining cards of ...

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  12. Find the coordinates of the point where the line (x-1)/3 = (y+4)/7 = (...

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  13. the coordinates of the foot of the perpendicular drawn from the point ...

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  14. Using the method of integration find the area of the triangle ABC, co...

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  15. Find the value of k, so that the function f(x) = {(kx^2 + 5, if x le 1...

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  16. The interval in which the function f given by f(x) = x^2 e^(-x) is str...

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  17. Find: int((tan^(3)x)/(cos^(3)x)) dx

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  18. The angle between the vectors hat i -hat j and hat j - hat k is (A)...

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  19. A fair dice is thrown two times. Find the probability distribution of ...

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  20. Find the angle between unit vector veca and vecb so that sqrt(3) veca ...

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