Question

Please solve this.You may solve any one.But solve with showing process.If you don't know the answer of the question then don't write anything.​

Answer 1

Hello dear ! It is just a simple way !

THE QUEATION IS :- WITHOUT FINDING ⬜️² ROOT WE HAVE TO CHECH THE POSSIBILITIES!

Right now :- (a) 784 it may be root number because the last digit of this number is 4

the possibility numbers are 1, 4,5,6,9 and 00

note : 0 should be two or more than that...

So this can be a square number

(b) 3676 = square number (6) may be

(c) 160000 = " " (0) may be

(d) 1225 = " " (5) may be etc...

derivation of square root numbers : -

1 ² = 1

2² = 4

3² = 9

4² = 16

5² = 25

6² = 36

7² = 49 etc...

And finally 10² = 100 that is double 0

THANK YOU....