The square root of 4 * the square root of 81 four possible combinations:
and two possible answers
sqrt(4/81) = sqrt(4)/sqrt(81) = 2/9
Square root of 81 has two solutions: SQRT(81) = +9 and -9 SQRT(81) = +9. The square root function has just a single output for every input. It, by definition, returns the positive 2nd root of the function. So SQRT(x) is always non-negative. This is distinctly different than saying, "what number squared equals 81?" That refers to solutions to the equation x^2 = 81, of which there are two.....+9 and -9.
Examples of such numbers are 49, where sqrt(49) = 7, 81, where sqrt(81) = 9. Such numbers are called square numbers.
0.7901
Oh, dude, the square root of 81 is 9 because 9 times 9 is 81. And the square root of 169 is 13 because 13 times 13 is 169. It's like basic math, man.
To simplify the square root of 162, first factor it into its prime components: (162 = 81 \times 2 = 9 \times 9 \times 2 = 3^4 \times 2). The square root of 162 can then be expressed as (\sqrt{162} = \sqrt{81 \times 2} = \sqrt{81} \times \sqrt{2} = 9\sqrt{2}). Thus, the simplified form of (\sqrt{162}) is (9\sqrt{2}).
sqrt(4/81) = sqrt(4)/sqrt(81) = 2/9
sqrt(810) = sqrt(81*10) = sqrt(81)*sqrt(10) = 9*sqrt(10)
9 = + sqrt(81).
1.6531
sqrt(25/81) = 5/9
sqrt(162) = sqrt(81*2) = sqrt(81)*sqrt(2) = 9*sqrt(2).
sqrt(81/23) = 1.8766 (approx)sqrt(81/23) = 1.8766 (approx)sqrt(81/23) = 1.8766 (approx)sqrt(81/23) = 1.8766 (approx)
X = 81 sqrt(X) + 3 = 12 ( subtract 3 from each side ) sqrt(X) = 9 (square both sides ) X = 81 ( the square root of 81 is 9 )
No because the square root of 81 is 9 which is a rational number
sqrt(81) + 25 9 + 25 = 34 ====
sqrt(25/81) = +/- 5/9