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56. What is the unit digit in the expansion of (89628)402?(1) 8(2) 6(3) 4(4) 2 |
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Answer» Given : (89628)⁴⁰² To Find : unit Digit (1) 8 (2) 6 (3) 4 (4) 2 Solution: (89628)⁴⁰² = (89628)⁴⁰⁰⁺² = (89628)⁴⁰⁰.(89628)² = ((89628)⁴)¹⁰⁰.(89628)² 8⁴ ENDS with 6 6¹⁰⁰ end with 6 8² ends with 4 (6)(4) = 24 Hence (89628)⁴⁰² ends with 4 Unit digit of (89628)⁴⁰² is 4 LEARN More: find the unit digit of the numeric expression 114power+115power21 ... find the unit digit of 1253 raise to 1469 - 1258 raised to 1471 ... What is the unit digit of the numeric expression of 10000power of ... |
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