Wiki User
∙ 13y agoYou must be pressing the wrong button!
Are you certain that you have pressed the square button and not just multiplied by 2?
Try typing in -2 * -2 and see what result you get.
Wiki User
∙ 13y ago2
Because it thinks that the negative sign is actually another operation to do and because of the order of operations, the calculator squares it first then makes it negative. To fix it, type it in like this (-3)2
12
The square roots of 4 are -2 and 2.
-2
2
Because it thinks that the negative sign is actually another operation to do and because of the order of operations, the calculator squares it first then makes it negative. To fix it, type it in like this (-3)2
You would get (i square root 2) because you can not square root a negative number, the answer is imaginary. Tmdkiller: Square root is NOT applicable to any Negative numbers eg -1 ,-2,-3 etc You would get an "Error 2" on a scientific Calculator anyway. =) editted by razakhan squre root of -2 is 2i (where "i" is "iota" represents imaginary or complex number......
You can find the square root of an irrational number by approximating irrational square roots of them, after you use the calculator. (The calculator gives an approximate root also) For example,1. Approximate the square root of 4.3 to the nearest hundredth.Use the calculator, which shows 2. 0736444135.Since 3 < 5 round down to 2.07 and drop the digits to the right of 7.2. Approximate the negative square root of 10.8 to the nearest hundredth.Use the calculator, which shows -3.286335345Since 6 > 5 round up to -3.29 and drop the digits to the right of 8.
Assuming the calculator can do exponents, take the number and raise it to the power of 1/2.
To find the square root of a number, take that number to the one-half power. Ex: 4^1/2 = 2 The best way to find a square root is simple guess and check. Because not all square roots are whole numbers, it is advisable to use either a calculator or square root table to find more complicated square roots. Give the Square Root Calculator a try: http://www.calculatorslive.com/Square-Root-Calculator.aspx
12
2 times the square root of -114
a positive square like if you have -2^2 it would be 4
The square roots of 4 are -2 and 2.
The square root of negative 18 is an imaginary number.The square root of positive 18 is [ 3 sqrt(2) ].If the 18 is negative, then scientists and engineers indicate its square root as 3i sqrt(2) . The little ' i ' indicates the square root of negative one.
Using a calculator, the square root of 22 is found to be 4.69041576. However, you can find an approximation without using a calculator: √ 22 = √ (44/2) = √ ((4*11)/2) = 2√ (11/2) = 2 √ 5.5 If you happen to know the square root of both five and six, than you can estimate the square root of 5.5. Alternatively, you could Find the square root of 11 and divide it by the square root of 2. The first method is probably easier. I would estimate the √ 5.5 at about 2.34, which when multiplied by 2 would equal 4.68, which is pretty close to the calculator answer.