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यदि a + b - c = 12 और a^(2) + b^(2) + c^...

यदि `a + b - c = 12` और `a^(2) + b^(2) + c^(2) = 110` है, तो

A

`ab + bc + ca =34`

B

`ab + bc - ca = 17`

C

`ab - bc + ca= 17`

D

`ab - bc - ca = 17`

लिखित उत्तर

Verified by Experts

The correct Answer is:
D
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