Q10. Find (x+y) = (x+y) if x = and y =4/5 y=-3/7
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Answer:
As x=3/7 & y=5/4.
Proof for x+y=x+y
Simply you can substitute the values of x&y and can prove it.
LHS=x+y
=3/7 +5/4
=47/28
RHS=x+y
=3/7+5/4
=47/28
Since RHS & LHS are equal hence proved.
2. You can also prove same for x x y=x x y by substituting values of x & y respectively.
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