Math, asked by sy978871, 6 months ago

सरल कीजिए 5 प्लस रूट 7 * 5 - रूट 7​

Answers

Answered by jahnavi7978
3

(5+\sqrt{7})(5-\sqrt{7}) = (5)^{2}-({\sqrt{7})^{2}} \\\ \implies (5)² - (\sqrt7)² \\\ \implies 25 - 7 \\\ \implies 8

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