Math, asked by shivshankar66, 1 year ago

ans it fast... .......

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Answered by TheLostMonk

divide exponents of given figures by 4 if these exponents are equal to or greater than 4.

if the obtained remainder is greater than 0 then use it as exponent of that figure and solve the figure. as it is solved below ,

15 / 4 = 3( remainder)

6^3 = 216 ,

4/ 4 = 0

if remainder = 0
then divisor 4 will be used as exponent of that figure .

7 ^4 = 2401

9^3 = 729

now subtract ,unit digits of 216, 2401 and 729

6 - 1 - 9 = -10 +6 = - 4

unit digit = 4 √

unit digit of the integral part of obtained number is = 4 and unit digit of the decimal part will be 4/4= 1 √

hope it helps

shivshankar66: ans is 6

TheLostMonk: i have also solved it at calculator , unit digit of integral part is 4 and of decided part ,unit digit is 1.you could slove it on calculator..

TheLostMonk: yes , i think its unit digit may be 6 . because the result i got it is -ve (- 4 ), then i think it will be subtract from 10. 10 - 4 = 6

TheLostMonk: but this method to solve it is correct , it has negative value ,so it messed here, let you try this method for some other questions, if you get negative unit digit then subtract that digit from 10 . for positive value , answer will remain same.

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