Math, asked by subinay, 11 months ago

express as a rational number (5^-1-7^-1)^-1

Answers

Answered by sravya0120

9

Answer:

35/2

Step-by-step explanation:

(5^-1 - 7^-1) ^-1

= 1/(5^-1 - 7^-1)

=1/(1/5 -1/7)

=1/(7-5/35)

=1/(2/35)

=35/2

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