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veca+vecb+vecc=vec0, |veca|=3, |vecb|=5,...

`veca+vecb+vecc=vec0, |veca|=3, |vecb|=5,|vecc|=9`,find the angle between `veca` and `vecc`.

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CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
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  2. If the angel between unit vectors vec aa n d vec b60^0 , then find...

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  3. veca+vecb+vecc=vec0, |veca|=3, |vecb|=5,|vecc|=9,find the angle betwee...

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  6. Let G1, G2a n dG3 be the centroids of the triangular faces O B C ,O ...

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  7. Prove that hat(i)times(vec atimeshat(i))+hat(j)times(vec atimeshat(j))...

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  8. If hat ixx[( vec a- hat j)xx hat i]+ hat jxx[( vec a- hat k)xx hat j]...

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  9. Let vec a , vec b ,and vec c be any three vectors, then prove that ...

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  12. If a ,ba n dc are three non-cop0lanar vector, non-zero vectors then ...

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  13. Prove that vectors vec u=(a l+a1l1) hat i+(a m+a1m1) hat j+(a n+a1n1)...

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  14. For any four vectors, prove that ( veca × vecb )×( vecc × vec...

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  15. If vec ba n d vec c are two-noncollinear vectors such that vec a...

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  16. If the vertices A,B,C of a triangle ABC are (1,2,3),(-1,0,0) ,(0,1,2) ...

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  17. Let vec a , vec ba n d vec c be pairwise mutually perpendicular vec...

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  18. Show that | vec a| vec b+| vec b| vec a is a perpendicular to | vec a|...

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  19. If |veca|=3, |vecb|=4 and the angle between veca and vecb is 120^(@) ....

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