if y/x+x/y=-1 (where x,ynot equal to 0 then find the valud of xcube -ycube
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y/x + x/y = -1
=>( x^2+y^2)/xy =-1
=> x^2+ y^2 = -xy
=> x^2 + y^2+ xy = 0
and we know that...
x cube - y cube = (x-y)( x^2+y^2+xy)
=> (x-y)(0)=0
=>( x^2+y^2)/xy =-1
=> x^2+ y^2 = -xy
=> x^2 + y^2+ xy = 0
and we know that...
x cube - y cube = (x-y)( x^2+y^2+xy)
=> (x-y)(0)=0
amit184546:
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x^2 ka matlab hai x square
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