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The projection of veca=3hati-hatj+5hatk...

The projection of `veca=3hati-hatj+5hatk` on `vecb=2hati+3hatj+hatk` is

A

`(8)/(sqrt(14))`

B

`sqrt(14)`

C

`(8)/(sqrt(35))`

D

`(8)/(sqrt(39))`

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The correct Answer is:
A
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KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2008-MATHEMATICS
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  2. If |veca| = |vecb| = |veca + vecb| = 1 , then the value of |veca - vec...

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  3. The projection of veca=3hati-hatj+5hatk on vecb=2hati+3hatj+hatk is

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  9. If f(x) is an even funiction and f (x) exists , then f' (e ) + f' (- e...

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  10. If alpha is a number satisfying the equation alpha^(2)+alpha+1=0 then...

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  11. The derivative of sin(x^(3)) w,r,t . cos(x^(3)) is

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  12. A unit vector perpendicular to both the vectors hati+hatjandhatj+hatk ...

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  13. If A=|{:(a(1),b(1),c(1)),(a(2),b(2),c(2)),(a(3),b(3),c(3)):}|andB=|{:(...

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  14. If f:RtoR is defined by f(x)=x^(3) then f^(-1)(8)=

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  19. If A=[{:(1" " 2),(3 " " 4):}] then A^(-1)=

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