Question

please answer me and my question!!!!!!!!!!!!!!!!!



verify the property x+y=y+x of rational numbers by taking :-

(d) x=-2/5,y=-9/10​

Answer 1

Step-by-step explanation:

Given:-

x= -2/5

y = -9/10

taking x+y,

we get

-2/5+( -9/10)

Taking LCM as 10, we get

-4-9/10

= -13/10

Now taking y+x

we get

-9/10+(-2/5)

Taking LCM as 10, we get

-9-4/10

= -13/10

Hence both answers are same.

Hence Verified.

Answer 2

Given

$x = \dfrac{-2}{5}$

$y = \dfrac{-9}{10}$

LHS

= x + y

= $\dfrac{-2}{5} +\dfrac{-9}{10}$

$= \dfrac{-4-9}{10}$

$= \dfrac{-13}{10}$

RHS

= y + x

$= \dfrac{-9}{10} +\dfrac{-2}{5}$

$= \dfrac{-9-4}{10}$

$= \dfrac{-13}{10}$

LHS = RHS

Hence proved !!!!