Question

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answer it plzz​

Answer 1

a

b

Is the correct answer........

Answer 2

Answer:

a]81 ^2

Step-by-step explanation:

we know 81=9.9

similarly 81 ^2=[81][81]

unit digit of any no. multiplied with a no. of same unit digit will have  unit digit as square of the unit digits no.

for eg:

48.48 = 2304

since 8 ^2=64 ,unit digit is 4 here

for 81 ^2 it will be xxx1 since 1 ^2 =1

pls mark me brainliest.