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P(1), P(2), P(3) are altitudes of a tria...

`P_(1), P_(2), P_(3)` are altitudes of a triangle ABC from the vertices A, B, C and `Delta` is the area of the triangle,
The value of `P_(1)^(-1) + P_(2)^(-1) + P_(3)^(-1)` is equal to-

A

`(2S)/Delta`

B

`2/r`

C

`(8R)/(abc)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
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