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The direction cosines of the line (x+3)...

The direction cosines of the line `(x+3)/(2)=(2y-3)/(-3)=(z-1)/(0)` are -

A

2, -3, 0

B

`(2)/(sqrt(13)),-(2)/(sqrt(13)),0`

C

`(2)/(5), (3)/(5), 0`

D

`(4)/(5), -(3)/(5),0`

Text Solution

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The correct Answer is:
D
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 3
  1. The vector equation of yz-plane is -

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  2. The foot of the perpendicular drawn from the origin to a plane is (2,...

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  3. The direction cosines of the line (x+3)/(2)=(2y-3)/(-3)=(z-1)/(0) are...

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  4. Let f(x)=a^(x)(a gt 0) be written as f(x)=g(x)+h(x) where g(x) is an e...

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  5. The area of the parallelogram formed by the vectors 3hati-2hatj+hatk ...

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  6. If veca=2hati-5hatj+4hatk and vecb=hati-4hatj+6hatk, then a unit v...

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  7. If veca+vecb+vec c=vec0 and |veca|=3,|vecb|=5 and |vec c|=7, then the ...

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  8. If vec alpha, vec beta, vecgamma be three unit vectors such that |ve...

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  9. If veca=2hati+5hatj+7hatk and vecb=hati-hatj+5hatk, then the vecor co...

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  10. The image of the point (-3, 5, 2) in the plane 2x-y+z+3=0 is -

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  11. The equation of the plane passing through the points (1, -1, 2) and (2...

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  12. The values of x, at which the first derivative of the function (x+(1)...

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  13. If f(x)=sin3x cos4x, then the value of f''((pi)/(2)) is -

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  14. Let f(x) be a differentiable even function, consider the following sta...

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  15. If y=x+x^(2)+x^(3)+…oo where |x| lt 1, then for |y| lt 1 the value of...

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  16. Find which function does not obey mean value theorem in [0, 1] -

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  17. The derivative of sec^(-1)((1)/(2x^(2)-1))" w.r.t. "sqrt(1-x^(2)) " at...

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  18. The derivative of the function f(x)=log(5)(log(7)x)[x gt 7] is -

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  19. If 2y=(x-a)sqrt(2ax-x^(2))+a^(2)"sin"^(-1)(x-a)/(a), then the value of...

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  20. The value of lim(x to 0)(1+3x)^((x+2)/(x)) is -

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