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8 grade maths

What is the multiplicative inverse of – 7? (a). 7 (b). 1/7 (c). – 7 (d). -1/7

Profile image of Aniket Singh
1 Year agoGrade
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1 Answer

Profile image of Askiitians Tutor Team
1 Year ago

To find the multiplicative inverse of a number, we need to identify the value that, when multiplied by the original number, gives the result of 1.

The multiplicative inverse of a number 'x' is 1/x. For example, the multiplicative inverse of 7 is 1/7, because:

7 × 1/7 = 1

Now, for the number -7, the multiplicative inverse is 1/(-7), which is equivalent to -1/7.

So, the correct answer is:

(d) -1/7