English, asked by harshpulkit, 1 year ago

prove that 2 power 30 + 2 power 29 + 2 power 28 upon 2 power 31 + 2 power 30 minus 2 power 29 is equals to 7 upon 10

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Answered by Anonymous
128
here is ur answer
hope it would help u

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Answered by Anonymous
26

2 power 30 + 2 power 29 + 2 power 28 / 2 power 31 + 2 power 30 minus 2 power 29 is equals to 7 / 10

=2³⁰+2²⁹+2²⁸/2³¹+2³⁰-2²⁹

=2(2³⁰/2²⁸+2²⁹/2²⁸+2²⁸/2²⁸)/2²⁹(2³¹/2³⁹+2³⁰/2³⁹-2²⁹/2²⁹)

=2²⁸(2²+2+1)/2²⁹(2²+2-1)

=(4+2+1)/229-28(4+2-1)

=7/2(5)

7/10

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