The last two digits of the number (19)131 + (131)19 are
Answers
90 will be last two digit of 19¹³¹ + 131¹⁹
Step-by-step explanation:
19¹³¹ + 131¹⁹ =
131¹⁹
Formula for Last two digits of numbers ending in 1
Multiply the tens digit of the number (3 here) with the last digit of the exponent (9 here) to get the tens digit. The unit digit will always equal to one.
tens Digit = 3 * 9 = 27 hence 7 will be tens digit
71 will be last two digit of 131¹⁹
19¹³¹ = 19 * 19¹³⁰ = 19 * (19²)⁶⁵ = 19 * (361)⁶⁵
(361)⁶⁵ will end with 01 ( as 6 * 5 = 30 hence tens digit = 0 & unit digit would be 1)
now multiplying it with 19
last two digit would be 19
19 will be last two digit of 19¹³¹
71 will be last two digit of 131¹⁹
19 will be last two digit of 19¹³¹
71 + 19
= 90
90 will be last two digit of 19¹³¹ + 131¹⁹
Learn more:
Last two digits of (19)¹³¹+ (131)¹
https://brainly.in/question/14652014
sum of last two digits of 7^2020 - Brainly.in
https://brainly.in/question/13644367