a3+b3=200,a+b=8,ab=?
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Answered by
1
a3+b3=200
(a+b)*3-3ab(a+b)
8*3-3ab(8)
512-24ab=0
512=24ab
ab=21.4
(a+b)*3-3ab(a+b)
8*3-3ab(8)
512-24ab=0
512=24ab
ab=21.4
Answered by
0
Hey friend here is your answer
Using identity( a+b)3---a3+ b3 + 3ab( a+b)
8^3------200+3ab(8)
512= 200+24ab
512-200=24ab
312=24ab
ab= 13
Hope it helps you
Pls mark brainliest
Using identity( a+b)3---a3+ b3 + 3ab( a+b)
8^3------200+3ab(8)
512= 200+24ab
512-200=24ab
312=24ab
ab= 13
Hope it helps you
Pls mark brainliest
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