91.Найдите значение выражения
[tex] 1)\sqrt{72} *\sqrt{2}. 2) \sqrt{360} *\sqrt{490} 3) \frac{\sqrt{242}}{\sqrt{2}} 1)\sqrt{25a}+\sqrt{36a} -\sqrt{49a } 2)\sqrt{27} -\sqrt{12} +\sqrt{300} 3)3\sqrt{32a} -5\sqrt{98a}+\frac{1}{3} \sqrt{288a} [/tex]
[tex] 1)\sqrt{72} *\sqrt{2}. 2) \sqrt{360} *\sqrt{490} 3) \frac{\sqrt{242}}{\sqrt{2}} 1)\sqrt{25a}+\sqrt{36a} -\sqrt{49a } 2)\sqrt{27} -\sqrt{12} +\sqrt{300} 3)3\sqrt{32a} -5\sqrt{98a}+\frac{1}{3} \sqrt{288a} [/tex]
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