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यदि x(1),x(2) तथा x(3) समीकरण x^(3)-6x...

यदि `x_(1),x_(2)` तथा `x_(3)` समीकरण `x^(3)-6x^(2) +3px -2p=0, p in R` के धनात्मक मूल हैं, तो `sin^(-1)(1/x_(1) + 1/x_(2)) + cos^(-1)(1/x_(2) + 1/x_(3)) - tan^(-1)(1/x_(3) + 1/x_(1))` का मान बराबर है: (i) `pi/4` (ii) `pi/2` (iii) `3pi/4` (iv) `pi`

A

`pi/4`

B

`pi/2`

C

`(3pi)/4`

D

`pi`

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
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