(adsbygoogle = window.adsbygoogle || []).push({}); For the smarter folk of NGU. Answer one then post one.

1+2i
------ <======== It's a fraction i.e 1+2i OVER 2-i
2-i

i^2 = -1

Write the answer as a+bi. Where a and b are both digits.

GO !

(1+2i)/(2-i)=i

Is the following nonsingular:

0 1 5 7 6 9
4 5 3 0 1 7
0 0 0 0 0 0
1 1 2 8 9 4
1 4 5 3 2 4
9 6 3 2 1 4

i am going to University this September , I am only 16 & i don't get that xD

I got 0+1i (in a+bi form), but that would just be i.

The correct answer is

1 + ((2 * i) / 2) - i = 1

because you are dividing the 2's and the i's so you are only left with a 1

..........................no.



I'm not in university yet either, this the most basic maths question I could find on my course, where do you live? Must have a poor education system...



You can't divide by 2 if it's a fraction in which 2 of the 4 numbers aren't divisible by 2. Besides I told you to give the answer in the form of a+bi.



DING ! DING ! DING ! We have a winner !

For everyone else, these are called complex numbers:

(1+2i) / (2-i) * (2+i) / (2+i) // The division of two complex numbers is defined in terms of complex multiplication.

(2+i+4i+2i^2) / (4+2i-2i-i^2) // Remember i^2 = -1. Now just add the real numbers together and the imaginary unit i together.

(5i) / (5) // Now divide top and bottom by 5.

Answer: 0+i

Link to complex numbers on Wikipedia = You must login or register to view this content.

Ok a new relatively easy one.

f(x) = x^2-7x+12

If f(x+1) is not equal to 0, find f(x) / f(x+1). Answer in the form of (x-a) / (x-b). Find the values of a and b.

allow quandratics this early LOL

In the UK.....