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Find the solutions to z^2 = i

Here z is a complex number, and therefore, z = a + bi. Thus, our equation becomes (a + bi)^2 = i. Expanding the brackets we get a^2 + 2abi + (b^2)(i^2) = i. Since i is the squ...

VB
Answered by Viktoria B. Maths tutor
36129 Views

How would I go about drawing a graph if i had no idea how to start?

Firstly you could work out the x intercept by putting y=0 in to the function of the graph and then similarly find out the y intercept by putting x=0 into the function. After this you could find the turnin...

AF
Answered by Annie F. Maths tutor
4152 Views

There are n sweets in a bag, 6 orange, rest yellow. H takes two, one after another, and eats them. Probability both are orange is 1/3. Show n^2 - n - 90 = 0.

First, we start with what we do know and this should lead us to the answer with steps inbetween. So the amount of yellow sweets to start is (n-6) but we want to focus on the orange sweets. This question i...

NF
Answered by Nicole F. Maths tutor
3438 Views

Solve the following definite integral from x=2 to x=-1: ((x^4) + 3(x^2) + 2) dx

GENERAL PROCEDURE --

To solve this equation you can separate and integrate each term on its own and then add each integral together.

To find the definite answer:

Substitute "x=2&...

HW
Answered by Harriet W. Maths tutor
3040 Views

integrate 5x^2 + x + 2 and find the value of c if the curve lies on the coordinates (1,3)

when integrating you must add one to the power and divide by the new power. so y=(5x^(2 + 1))/3 + (x^(1+1))/2 + 2x + c now substitute 1 for x and 3 for y so 3= (5(1)^(2 + 1))/3 + ((1)^(1+1))/2 + 2(1) +...

MC
Answered by Meherun C. Maths tutor
3675 Views

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