The only exact solution I know of.............is to use imaginary numbers.......

i squared =

-1

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Rad

Deg

x!

Inv

sin sin⁻¹

ln e^x

π

cos cos⁻¹

log 10^x

e

tan tan⁻¹

√ x²

Ans Rnd

EXP

x^{y y}√x

(

)

%

AC CE

7

8

9

÷

4

5

6

×

1

2

3

−

0

.

=

+

More info

I Squared Capital

www.isquaredcapital.com/

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Complex Numbers: Introduction - Purplemath

www.purplemath.com/modules/complex.htm

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That's because you had no numbers which were negative after you'd squared them (so you couldn't "go backwards" by taking the square root). Every number ...

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