please answer to the following question
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Step-by-step explanation:
BRAINLIEST BRAINLIEST BRAINLIEST
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vamshikrishna36076:
is equal to
12 -5 = 7
how
(a - b)(a + b) = a^2 - b^2 = (2sqrt(3))^2 - (sqrt(5))^2 = 4×3 - 5 = 12 - 5 = 7
ok friend
then our contradiction is rational or irrational
we assume that we have a rational number, it then leads us to that sqrt(3) is rational and this is the contradiction.
now since we come to a FALSE conclusion then our assumption that we have a rational number is also FALSE, which means that the number we started with is irrational.
ok
so it's irrational
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