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Find a vector vec r of magnitude 3sqrt(...

Find a vector ` vec r` of magnitude `3sqrt(2)u n i t s` which makes an angle of `pi/4` and `pi/2` with `y` and `z-`axis respectively.

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RD SHARMA ENGLISH-ALGEBRA OF VECTORS-All Questions
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  3. Find a vector vec r of magnitude 3sqrt(2)u n i t s which makes an an...

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  8. Prove that four points 2 vec a+3 vec b- vec c , vec a-2 vec b+3 vec ...

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  9. Find the direction cosines of the vector joining the points A(1,2,-...

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  13. Show that the points with position vectors vec a-2 vec b+3 vec c ,-2 ...

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  16. Show that the found points A ,B ,C ,D with position vectors vec a , v...

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  17. Let vec a , vec b , vec c be the position vectors of three distinct p...

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  18. If vec a and vec b are position vectors of points Aa n dB respectivel...

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  19. If vec aa n d vec b are position vectors of Aa n dB respectively, fin...

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  20. If vec c = 3vec a+4vec b and 2vec c =vec a -3vec b, show that (i) vec ...

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