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If a b = 21 and ((a + b ) ^(2))/( (a - ...

If ` a b = 21 and ((a + b ) ^(2))/( (a - b ) ^(2)) = (25)/(4)` ten the value of `a ^(2) + b ^(2) + 3 ab` is

A

115

B

121

C

125

D

127

Text Solution

Verified by Experts

The correct Answer is:
B
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