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If the equation of a straight line is 6x...

If the equation of a straight line is `6x-2=3y+1=2z-2`, then direction cosines of the line are -

A

`(1)/(sqrt(14)),(2)/(sqrt(14)),(3)/(sqrt(14))`

B

`(6)/(7),(3)/(7),(2)/(7)`

C

`-(2)/(3), (1)/(3), -(2)/(3)`

D

none of these

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The correct Answer is:
A
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 6
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  8. At x=0 the function f(x)=x^3+1 has -

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  12. (d)/(dx)[sin^(2)cot^(-1)( sqrt((1-x)/(1+x)))] is equal to -

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  14. The derivative of sin^(2)x w.r.t. cos^(2)x is -

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  15. If y="cosec"^(-1)((x+1)/(x-1))+cos^(-1)((x-1)/(x+1)), then (dy)/(dx...

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  16. If y=tan^(-1)((sqrt(1+x^(2))-1)/(x)) and z=tan^(-1)((2x)/(1-x^(2))), ...

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  19. The value of the integral int x^(3)log x dx is equal to -

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