1/(10 power 18) - 1/(10 power 20) = ?

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1/(10 power 18) - 1/(10 power 20) = ?..

99/1020

 Is This Answer Correct ? 44 Yes 8 No

1/(10 power 18) - 1/(10 power 20) = ?..

99/(10power20)

none of these

 Is This Answer Correct ? 25 Yes 3 No

1/(10 power 18) - 1/(10 power 20) = ?..

=1/(10 power 18) - 1/(10 power 20)

=((10 power 20) - (10 power 18)) / ((10 power 18) * (10
power 20)) // cross multiply

=((10 power 18) * (100 - 1)) / (10 power 38)

=99 / 10 power 20 //ans//

 Is This Answer Correct ? 21 Yes 0 No

1/(10 power 18) - 1/(10 power 20) = ?..

ans is 99/10 power 20

 Is This Answer Correct ? 5 Yes 0 No

1/(10 power 18) - 1/(10 power 20) = ?..

((10 power 2)-1)/(10 power 20)=99/(10 power 20)

 Is This Answer Correct ? 4 Yes 2 No

1/(10 power 18) - 1/(10 power 20) = ?..

100

 Is This Answer Correct ? 13 Yes 12 No

1/(10 power 18) - 1/(10 power 20) = ?..

(10 power 18)(10 power 2-1)/((10 power 18)
= (100-1)
=99

 Is This Answer Correct ? 3 Yes 9 No

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