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If A,B,C,D are (2,3,-1),(3,5,-3),(1,2,3)...

If A,B,C,D are (2,3,-1),(3,5,-3),(1,2,3),(3,5,7) respectively, then the angel between AB and CD, is

A

`pi//2`

B

`pi//3`

C

`pi//4`

D

`pi//6`

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The correct Answer is:
A
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MOCK TEST 3-MCQS
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  8. If y=sinx and u=cosx, then (dy)/(du) is equal to

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  12. If g(1)=g(2), then int(1)^(2)[f{g(x)}]^(-1)f'{g(x)}g'(x)dx is equal to

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  13. If X and Y are two non-empty sets where f: X->Y,is function is define...

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  14. Let X be a random variable which assumes values x1, x2, x3,\ x4 such t...

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  15. The solution of dy/dx+x=xe^((n-1)y)

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  16. Let X denote the number of times heads occur in n tosses of a fair coi...

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  17. If the mean and the variance of a binomial variable X are 2 and 1 resp...

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