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If |veca| = sqrt3,|vecb| = 2 and veca.ve...

If `|veca| = sqrt3,|vecb| = 2` and `veca.vecb = sqrt6`, then find the angle between `veca` and `vecb`.

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UNITED BOOK HOUSE-SET 19-EXERCISE
  1. Evaluate: int((cosx+xsinx)/(x(x+cosx)))dx.

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  2. If x>1/2, show that the function f(x) = x(4x^2 - 3) is steadily increa...

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  3. If |veca| = sqrt3,|vecb| = 2 and veca.vecb = sqrt6, then find the angl...

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  4. If the line (x-2)/(6) = (y-1)/(lambda) = (z+5)/(-4) is perpendicular t...

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  5. The probability that A hits a target is 1/3 and the probability that B...

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  6. An unbiased coin is toosed 7 times. Find the probability of getting an...

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  7. answer any one question : (ii) prove that , tan(pi/4 +1/2 (cos ^(-1) (...

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  8. Solve : |(x+4, 2x,2x),(2x , x+4, 2x),(2x, 2x, x+4)| = 0

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  9. By using properties of determinants. Show that: |1+a^2-b^2; 2ab; -2b: ...

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  10. If y^(1/3) + y^(-1/3) = 2x, prove that (x^2 - 1)y2 + xy1 = 9y.

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  11. Evaluate : int(loge(x+1))/((x+1)^2) dx

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  12. Evaluate :int(5^(5^(5^x)cdot 5^(5^(x))cdot 5^x))dx

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  13. Solve the differential equation: (1+y^2)+(x - e^(tan^-1 y) )dy/dx = 0

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  14. Find the unit vector which is perpendicular to both veca = 2hati + 3ha...

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  15. If veca = hati + hatj + hatk , vecb = hatj - hatk then find a vector v...

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  16. Evaluate: underset(nrarralpha)Lt[1/(sqrt(2n-1^2)) +1/(sqrt(4n-2^2))+1/...

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  17. Evaluate : int(0)^(pi/4) (sin^2xcos^2xdx)/((sin^3x+cos^3x)^2)

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  18. A discreate random variable x has the following probability distributi...

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  19. answer any two questions :(iii) if the straight line lx+my=n be a norm...

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  20. Find the area enclosed by the curves x^2=y , y=x+2 and x-axis

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