Question

vertify that - (-x) =x
for x=2/15​

Answer 1

Step-by-step explanation:

To see whether -(-x) = x; we need to put x=\frac{2}{15} \text { in }-(-x)=x

According to rules of integer, when the signs are same, we get the same sign in the answer. When the signs are different, we get different sign as answer.

-\left(-\frac{2}{15}\right)=\frac{2}{15}

We know that, (-) \times(-)=(+)

\Rightarrow \frac{2}{15}=\frac{2}{15}

The answer is TRUE.

Now let us check for x=-\frac{13}{17}

We put for x=-\frac{13}{17} \text { in }-(-x)=x

-(-x)=-\left(-\left(-\frac{13}{17}\right)\right)

We know that, (-) \times(-)=(+)

=-\left(+\frac{13}{17}\right)

We know that, (-) \times(+)=(-)

=-\left(\frac{13}{17}\right)=x

Therefore, the answer is TRUE.

Thus, the answers is verified.

Answer 2

Answer:

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