Question

Verify that -(-x)=xfor,1)x=11/15

Answer 1

Answer:

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Step-by-step explanation:

- ( - x ) = x where x = 11/15

Taking LHS

- ( - 11 / 15 )

as we know - and - makes +

+ 11 / 15 and LHS = x = + 11 / 15

Hence LHS = RHS

Answer 2

Answer:

First of all -(-x)=x is true for each case when x is a real no.

Step-by-step explanation:

PROVING THAT -(-x)= x when x= ¹¹/¹⁵

Substituting the value of x

:: -(-¹¹/¹⁵)= ¹¹/¹⁵..... (1)

We know that negative of negative is equal to positive i.e., when two negative rationals are multiplied the product is a positive rational

So,

-(-¹¹/¹⁵)= ¹¹/¹⁵

Substituting the value in (1)

¹¹/¹⁵=¹¹/¹⁵

• HENCE PROVED.