if x/y+y/x = -1 (x,y is not equal to zero ) then find the value of x^3 - y^3
Answers
Answered by
3
xsquare+ysquare/xy=-1
xsquare+ysquare=-xy..(1)
xcube-ycube=(x-y)(xsquare+ysquare+xy)
xcube-ycube=(x-y)(-xy+xy) from (1)
xcube-ycube=(x-y)(0)
xcube-ycube=0 any number multiply with 0 is
0
if you satisfied with my answer can you please follow me up.
xsquare+ysquare=-xy..(1)
xcube-ycube=(x-y)(xsquare+ysquare+xy)
xcube-ycube=(x-y)(-xy+xy) from (1)
xcube-ycube=(x-y)(0)
xcube-ycube=0 any number multiply with 0 is
0
if you satisfied with my answer can you please follow me up.
sarasprite:
can you please explain your answer........i didnt quiet get it
Similar questions