Not sure about "for a bi", but
sqrt(-245) = ± 15.652i where i is the imaginary square root of -1.
245 * 245 = 60025
Complex numbers are numbers of the a + bi where a and b are real number and i is the imaginary square root of -1.
7 root 5
There are infinitely many of them. They include square root of (4.41) square root of (4.42) square root of (4.43) square root of (4.44) square root of (4.45) square root of (5.3) square root of (5.762) square root of (6) square root of (6.1) square root of (6.2)
This is a difficult one to answer without being able to use math type. You have to multiply the top and bottom of this expression by the conjugate to solve the problem. But since I can't show you that, I will just give you the answer without the work included.The numerator is a-2sqrt(ab)+bThe denominator is a-bI will solve all your math problems. Check my profile for more info.
245 245
Expressed as a surd in its simplest form, sqrt(245) is equal to 7 sqrt(5).
√245 = √(49 x 5) = √49 x √5 = 7√5
Imaginary number
Two of the integers are -2 and 5.
sqrt(245) = sqrt(49*5) = sqrt(49)*sqrt(5) = 7*sqrt(5)
[ 0 + 7i ] and [ 0 - 7i ] is.
The standard form of a complex number is a+bi. So the standard form of the negative square root of 5i is 0-√(5i).
245 * 245 = 60025
A number of the form a+bi where a and b are real numbers and i is the square root of -1.
√80 - √245 = √(16*5) - √(49*5) = √16*√5 - √49*√5 = 4√5 - 7√5 = -3*√5
In most case you must multiply the number by itself.When the number is irrational ( meaning it cannot be expressed as a fraction,) you may end up with a one that is rational ( can be expressed as a fraction).For example, the 2 squared is 2x2=4square root of 2 is irrational but square root of 2 times itself is 2.Pi is an irrational number but PixPi is Pi2 which is still irrational.Even complex numbers can be squared by multiplying the number by itself.So a+bi is a complex number and (a+bi)2 =(a+bi)(a=bi) where i is the square root of -1.