Is it possible to find the square of a number without squaring the given or other numbers?

Answer 1

Sure. Take the log of the number, multiply the log by 2, and take the antilog of the result.

That's because multiplying the log of a number by a second number is the equivalent of raising the first number to the power of the second number.

Of course, you need a log table to make this work.

Answer 2

Yes.
One way is n^2 = sum (1+3 +5 +... 2n-1) ...
For example, 3^ = 1+3+5 = 9.

Another is way is to use fact that a^2-1 =(a-1)(a+1)
So if a = 7 the 7^2-1 = (7-1)(7+1) = 6*8=48 so 7^2 = 48+1 = 49

Answer 3

yes..but u need a log table