plz anyone give me the answer I want it urgent. I will mark him as brainliest
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hey mate ur answer is attached.
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bharti7267:
mark as brainliest plz
thanks
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as per the identity
u²+1/u²= (u +1/u)² -2
= 3²-2
= 9-2=7
u²+1/u²=7
(u²+1/u²)² = 7² = 49 .
thanks
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