.06 and .06
0.0625 has a grand total of 2 square roots, and they're both real. They are +0.25 and -0.25
sqrt(0.0004) = +/- 0.02. Try calculating (+0.02)^2 and (-0.02)^2 by hand to convince yourself that both are real roots of 0.0004. ================
The two square roots of 400 are: 20 and -20.
0.018973665961 -0.018973665961
.06 and .06
-1.1402 and 1.1402, approx.
There are no real square roots of -256. But using complex numbers the square roots of -256 are 16i and -16i.
0.0625 has a grand total of 2 square roots, and they're both real. They are +0.25 and -0.25
The square roots of any positive real number are a positive and a negative real number. The square roots of any negative real number are a positive and a negative imaginary number. The square roots of any imaginary number or any complex number are two complex numbers.
There are two roots, both real: -13 and +13
sqrt(0.0004) = +/- 0.02. Try calculating (+0.02)^2 and (-0.02)^2 by hand to convince yourself that both are real roots of 0.0004. ================
The two square roots of 400 are: 20 and -20.
They are called real numbers. Negative square roots must be complex numbers.
Negative numbers have no real square roots.-144 has two square roots: 12i and -12i.
The short answer is "Nothing". In the complex domain, the number of nth roots of any real number is n. Every non-negative real number has 2 square roots. Every real number has 3 cube roots. Every non-negative real number has 2 real square roots and 2 imaginary ones. and so on. So what?
No. Negative numbers are real but their square roots are not.