Question

1.Verify : – (-x) =x for x=(-9)/10

Answer 1

Answer:

Answer is ( -x) is not equal to x.

Step-by-step explanation:

(-x) = x for x = (-9) /10

x = ( -9) /10

- ( -9 ) /10 = x (-) (-) = (+)

9/10 = x

9/10 = (-9) /10

Thus. not proved .

Hope it is helpful for you.

Answer 2

here x = -9/10

so, -x = -(-9/10) = 9/10

it is said to prove –(-x) = x

According to question

–(9/10) which is here –(-x) = -9/10 which is x

hence it's proved that -9/10 = -9/10