Question

if x =4 upon 7 and y =2 upon 5, then verify that:

1. x-y=`y-x 2.-(x+y)=(-x)+(-y).






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Answer 1

Step-by-step explanation:

x=4/7 y = 2/5

1) x-y=y-x

4/7-2/5=2/5-4/7

20-14 = 14-20

35 35

6/35= -6/35

L.H.S. is not equal to R.H.S

2) -(x+y)=(-x)+(-y)

- (4/7+2/5)= (-4/7)+(-2/5)

-(20+14)/35= (-4/7-2/5)

-(34/35) = (-20-14)/35

-(34/35) = -(34/35)

L.H.S is equal to R.H.S

HOPE THIS HELPS YOU.