Please give me the right answer..... Its really very very important for me.
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Answer:
Given that, a=3,b=7,
To find : a
b
−b
a
a
b
−b
a
=3
7
−7
3
(where a=3,b=7)
=3×3×3−7×7×7
=9×3−49×7
=27−343=−316
∴a
b
−b
a
=−316
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