Question

Find the unit digit of (7^96 – 3^58).
(A) 6
(B) 4
(C)3
(D) None of these
​

Answer 1

B)4 is the answer..........

Answer 2

Answer:

answer is 2

Step-by-step explanation:

=7^96 - 3^58

=(7^4)^24 - (3^4)14×(3^2)

now 7^4 will have unit digit =1

so 7^96 will also have unit digit = 1

similarly 3^56 will have unit digit =1

now,

= 1 - 1×9

= 1-9

= -8

= 10-8

= 2