Calculate 21212 (mod 9211), reducing it to a positive number less than 9211. Show your calculations. [Hint. 9211 = (151)(61).]

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Q: 150 198 205 319 345 ► 410 450 100 100 100 480 430 390 215/

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Q: 10. Show that G has a cyclic normal subgroup of index 5 if (a) IGI = 385 (b) |G| = 455

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