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In triangle ABC the mid point of the sid...

In triangle ABC the mid point of the sides AB, BC and AC respectively (l, 0, 0), (0, m, 0) and (0, 0, n). Then, `(AB^2+BC^2+CA^2)/(l^2+m^+n^2)` is equal to

A

`2`

B

`4`

C

`8`

D

`16`

Text Solution

Verified by Experts

The correct Answer is:
C
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ARIHANT MATHS-PRODUCT OF VECTORS-Exercise (Single Option Correct Type Questions)
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  14. The shortest distance between a diagonal of a unit cube and the edge s...

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  15. Let v=2hat(i)+hat(j)-hat(k) and w=hat(i)+3hat(k). If hat(u) is unit v...

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  16. The length of the edge of the regular tetradedron ABCD is 'a'. Points ...

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  17. If the two adjacent sides of two rectangles are represented by vecto...

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  18. Let veca,vec b,vec c are three vectors along the adjacent edges ofa t...

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  19. If the angle between the vectors vec(a)=hat(i)+(cos x)hat(j)+hat(k) a...

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  20. If position vectors of the points A, B and C are a, b and c respectiv...

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