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If x, y, z, t are real numbers such that...

If x, y, z, t are real numbers such that `x^(2)+y^(2)=9, z^(2)+t^(2)=4` and `xt-yz=6` then the greatest value of xz is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
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