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If Delta ABC is right angled at A, where...

If `Delta ABC` is right angled at A, where `A-=(4, 2, 3), B-=(3, 1, 8)` and `C-=(x,-1,2)`, then x =

A

-4

B

-2

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
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NIKITA PUBLICATION-THREE DIMENSIONAL GEOMETRY -MULTIPLE CHOICE QUESTIONS
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  2. If triangleABC is right angled at B , where A(5,6,4), B(4,4,1) and C(8...

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  3. If Delta ABC is right angled at A, where A-=(4, 2, 3), B-=(3, 1, 8) an...

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  4. If DeltaABC, if A-=(3,2,6), B-=(1,4,5) and C-=(3,5,3), then m angle...

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  5. If A (0, 7, 10), B(-1, 6, 6) and C(-4, 9, 6) are the vertices of Delta...

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  6. If bar a, barb, barc are three mutually perpendicular vectors of equal...

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  7. The angle between the lines whose direction cosines satisfy the equ...

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  8. Find the direction cosines of the two lines which are connected by ...

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  9. Find the acute angle between the two straight lines whose direction co...

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  10. The direction cosines l, m and n of two lines are connected by the rel...

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  11. If the direction ratio of two lines are given by 3lm-4ln+mn=0 and l+2m...

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  12. The angle between the lines whose direction cosines l, m, n satisfy t...

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  13. Find the angle between the lines whose direction cosines are given by ...

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  14. Direction ratios of two lines satisfy the relations 2a-b+2c=0 and ab+...

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  15. IF the direction ratios of two vectors are connected by the relations ...

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  16. The angle between diagonal of a cube and diagonal of a face of the c...

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  17. Let l(1),m(1),n(1),l(2),m(2),n(2) and l(3),m(3), n(3) are direction co...

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  18. The direction cosines of a line equally inclined to three mutually per...

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  19. Find the direction cosines of the two lines which are connected by ...

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  20. If l(1), m(1), n(1) and l(2), m(2), n(2) are the direction cosines of ...

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