sqrt(20) =
sqrt( 5 x 4) =
sqrt(5 x 2 x 2) =
sqr(5) X sqrt(2) x sqrt(2)
NB The sqrt(2) X sqrt(2) = 2
Hence
sqrt(5) X 2
Ususally written as 2sqrt(5) = sqrt(20) .
NB It is written in this form ' 2sqrt(5) ' in order to indicate that the '2' is a coefficient of the sqrt(5) and NOT to be 'square rooted'.
the square root of 20 in it's simplest form is ^2 square root of 5
sqrt(2000) = 20*sqrt(5)
sqrt(20)*sqrt(5) = sqrt(20*5) = sqrt(100) = ±10
The square root of 400, also known as 20.
It is 2*sqrt(5).
the square root of 20 in it's simplest form is ^2 square root of 5
20√15
sqrt(20)factor under the radicalsqrt(22 * 5)bring out the 2 as it is squared2sqrt(5)========simplest form
sqrt(2000) = 20*sqrt(5)
sqrt(20)*sqrt(5) = sqrt(20*5) = sqrt(100) = ±10
20 times the square root of 2
√400 = 20, -20
2√5
The square root of 400, also known as 20.
It is 2*sqrt(5).
Because the Square Root of negative 1 = i (The imaginary square root of negative 1.) and where if the square root of one number and of another number are multiplied together, the answer is equal to the square root of the two numbers combined. (Square root of 8 times the square root of 5 equals the square root of 40.) So... √(-20) =√20×√(-1) =√4×√5×i =2i(√5) The answer is 2i times the square root of 5. square root (-20) = square root (-1) x square root (20) square root (-20) = i x 4.47213595 square root (-20) = 4.47213595 i
The square root of 75 is 8.66 and the square root of 20 is 4.47.