Question

For the given number a.find it’s additive inverse and b.find its absolute value. 7.87 A.the additive inverse of 7.87 is ??

Answer 1

a) -7,87

b) 7.87

Explanation:

The sum of a real number and its additive inverse gives the identity element of addition which is zero.

Let x be the additive inverse of 7.87 then
`x+7.87=0`

This implies that:
`x=-7.87`

The absolute of a real number is its distance from zero on the real number line.

`|-7.87|=|7.87|=7.87`