ICSE Class 8 Answered

2 to the power-3 ×(-7)to the power-3

Asked by Taskeensiddiqui2 | 19 Mar, 2020, 12:52: PM

Expert Answer

2^-3 × -7^-3

begin mathsize 16px style equals 1 over 2 cubed cross times fraction numerator 1 over denominator negative 7 cubed end fraction space space space space space space space space.... space open parentheses a to the power of negative straight m end exponent space equals space 1 over straight a to the power of straight m close parentheses equals 1 over 8 cross times fraction numerator 1 over denominator negative 343 end fraction equals fraction numerator 1 over denominator negative 2744 end fraction end style

Answered by Yasmeen Khan | 19 Mar, 2020, 03:14: PM

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ICSE 8 - Maths

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