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Answered by
16
heya ,
We simply Simplified the equation and all the stuff got cancelled and at last we put the value !
HOPE YOU FIND IT HELPFUL !
DO MARK IT AS BRAINLIEST !!
Answered by
5
in this we use algebraic identity to prove it
which is
(a+b) (a-b)
a² - b²
15² - (10√2)²
225 - (100×2)
225 - 200
25
answer is√25
=5
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