find the value of 8ab(a^2+b^2) when a+ b =√5 and a-b = √3
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I hope it is the ans.
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tannushree2986:
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Answer is 16
U forgot to subtract 1 in finding the value of a^2 + b^2
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These 2 formulas are very useful for quick calculation....
It's my advice to learn HOW TO USE THEM if u wanna crack competitive examinations....
Feel free to ask any doubts.....
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