Question

i need only no.2
plsssss help me​

Answer 1

Answer:

option b)99 ,square of 3=9

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Answer 2

$\huge\color{red}{Answer}$

given

number = 99

to find

which number is unit place in square of 99

$\huge\color{green}{explanation}$

• on squring 99

we get = 9801

unit digit = 1

so required number is 1

$\</strong><strong>l</strong><strong>a</strong><strong>r</strong><strong>g</strong><strong>e</strong><strong>\color{</strong><strong>brown</strong><strong>}{</strong><strong>extr</strong><strong>a</strong><strong>\</strong><strong>:</strong><strong>info</strong><strong>}$

unit digit :- it is digit left of decimal point

squre of number :- it is increase in number by multiple of it self

hope it helps you

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