answer it if u r a genius
Attachments:
Answers
Answered by
2
a+b=11
squaring both sides
a square+b square+2ab=121
a square+b square is given
65+2ab=121
2ab=121-65
ab=56/2
ab=28
cubing both sides
(a+b)cube=1331
a cube+b cube +3ab(a+b)=1331
a cube+b cube+3×28×11=1331
a cube +b cube=1331-924
a cube+b cube=407
squaring both sides
a square+b square+2ab=121
a square+b square is given
65+2ab=121
2ab=121-65
ab=56/2
ab=28
cubing both sides
(a+b)cube=1331
a cube+b cube +3ab(a+b)=1331
a cube+b cube+3×28×11=1331
a cube +b cube=1331-924
a cube+b cube=407
Similar questions