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If vecalpha= 2hati+3 hat j-6 hatk and ve...

If `vecalpha= 2hati+3 hat j-6 hatk` and `vec beta= phat i-hatj+2 hatk` are two parallel vectors, then the value of p is

A

`-1/3`

B

`2/3`

C

`-2/3`

D

`-3/2`

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UNITED BOOK HOUSE-QUESTION PAPER 2017-EXERCISE
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  2. If vecalpha= 2hati+3 hat j-6 hatk and vec beta= phat i-hatj+2 hatk are...

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  3. The value of sin(cos^(-1)x)-cos(sin^(-1)x)is-

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  7. If the direction ratios of a striaght line are proportional, to 0,1,-1...

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  8. If f(x)=|x|+|x-1| then f(x)is-

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  9. The value of overset(a)underset(-a)int (xe^(x^4))/(1+x^2)dxis

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  10. If the inverse of the matrix A exists, then the value of det (A^-1)

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  11. If R is a relation defined as R ={(x,y):x,y in N and x+3y =12}. Then f...

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  12. Evaluate : sec^2(tan^(-1)2)+cosec^2(cot^(-1)3).

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  13. Show that , A =1/3[[-1,2,-2],[-2,1,2],[2,2,1]] is proper orthogonal ma...

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  14. Prove that |[1,logxy,logxz],[logyx,1,logyz],[logzx,logzy,1]|=0

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  15. If x = sqrt(a^(sin^(-1)t)) and y= sqrt(a^(cos^(-1)t) show that (dy)/(...

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  16. Verify Rolle' theorem for the function f(x)= x^2-4x+3 in 1lexle3.

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  17. Evaluate: int(cos x-cos 2x)/(1-cosx)dx.

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  18. A particle starts with the velocity u and moves in a straight line, i...

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  19. Find the interval where f(x) = 1/(1+x^2) decrease.

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