RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 2. Powers

Subject: Maths - Class 8th

Q. No. 6 of Exercise 2.1

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By what number should 5-1 be multiplied so that the product many be equal to (-7)-1?

Let the number 5-1 shlould be multiplied by

According to the question:

5-1 = (-7)-1

[Using -n = ]

Therefore 5-1 should be multiplied by

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