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If (A=19+6\sqrt{10}), what is the simplified form of (\sqrt{A})?यदि (A=19+6\sqrt{10}), तो (\sqrt{A}) का सरल रूप क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (3+\sqrt{10})(3+\sqrt{10})
Because ((3+\sqrt{10})^{2}=9+10+6\sqrt{10}=19+6\sqrt{10}), (\sqrt{A}=3+\sqrt{10}). In exams, identify perfect-square surd forms.क्योंकि ((3+\sqrt{10})^{2}=9+10+6\sqrt{10}=19+6\sqrt{10}), इसलिए (\sqrt{A}=3+\sqrt{10})। परीक्षा में पूर्ण वर्ग करणी पहचानें।
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