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If [[hat(i)+4hat(j)+6hat(k), 2hat(i)+aha...

If `[[hat(i)+4hat(j)+6hat(k), 2hat(i)+ahat(j)+3hat(k), hat(i)+2hat(j)-3hat(k)]]=0` then a=

A

`4`

B

`3`

C

`6`

D

`2`

Text Solution

Verified by Experts

The correct Answer is:
C
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NIKITA PUBLICATION-VECTOR-MULTIPLE CHOICE QUESTIONS
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  2. If overline(a)*hat(i)=4, then (overline(a)timeshat(j))*(2hat(j)-3hat(k...

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  3. If [[hat(i)+4hat(j)+6hat(k), 2hat(i)+ahat(j)+3hat(k), hat(i)+2hat(j)-3...

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  4. [[hat(i), hat(j), hat(k)]]+[[hat(k), hat(j), hat(i)]]+[[hat(j), hatk, ...

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  5. If overline(u)=hat(i)-2hat(j)+hat(k), overline(v)=3hat(i)+hat(k), over...

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  6. If overline(u)=hat(i)-2hat(j)+hat(k), overline(v)=3hat(i)+hat(k), over...

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  7. If overline(a)=hat(i)+5hat(k), overline(b)=2hat(i)+3hat(k), overline(c...

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  8. If overline(u)=-hat(i)-2hat(j)+hat(k), overline(r)=3hat(i)+hat(k), ove...

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  9. If overline(c)=3overline(a)-2overline(b), then [[overline(a), overline...

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  10. [[overline(a), overline(b), overline(a)timesoverline(b)]]=

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  11. Which of the following is trues?

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  12. [[overline(a)-overline(b), overline(b)-overline(c), overline(c)-overli...

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  13. If overline(a), overline(b) and overline(c) are unit coplanar vectors,...

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  14. If overline(a), overline(b) and overline(c) are three non-coplanar vec...

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  15. [[overline(a)+overline(b), overline(b)+overline(c), overline(c)+overli...

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  16. [[overline(a), overline(b)+overline(c), overline(c)+overline(b)+overli...

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  17. overline(a)*((overline(a)+overline(b)+overline(c))times(overline(b)+ov...

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  18. Value of ((overline(a)+overline(b)+overline(c))times(overline(b)-overl...

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  19. If overline(a), overline(b) and overline(c) are three non-coplanar vec...

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  20. If overline(a), overline(b) and overline(c) are three non-coplanar vec...

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