simplify the expression (2+7i)+(3-6i)?

Answer 1

Just add the real and imaginary terms.

5 + i

Answer 2

5+i

Answer 3

5 + i

Answer 4

"i" is a mathematical concept this is rather confusing to locate in each and every day existence. It stands for the "imaginary unit". The letter j is likewise oftentimes used for the same ultimate thought in Engineering guides, relatively electric engineering, while circuits are studied, with the aid of fact there I and that i've got distinctive meanings (contemporary, and that i forget approximately what). It means "the sq. root of -a million". there is no extensive style on the real extensive style line that provides -a million while that's squared. So the imaginary unit is in a distinctive length. it truly is considerable to realize that's a separate, new length aside from real numbers. for some century or 2 there replaced right into a great argument the place superior intellectuals tried to be sure no rely if it exists, till somebody desperate whats up, we are in a position to easily draw it on the vertical axis, and the real numbers on the horizontal axis, like an x axis and y axis, different than now there are some marvelous policies for multiplying it, the place multiplying by technique of i motives a ninety degree rotation to the left! additionally, you'll be able to make complicated numbers with an imaginary section and a real section, and then they are in a position to be added mutually! Then they reported it truly is exciting, permit's attempt including them mutually! it works touching directly to comparable to vectors, too, while they're added or subtracted, different than the notation is distinctive (to remind us that that's something greater suitable than in basic terms 2 dimensional vectors truly). besides you do the three-2 and get a million and you do the -i - 6i nicely this is obviously -7i in basic terms like a minus sheep plus minus six sheeps could be minus seven sheeps so the respond is -a million - 7i to entice it you may pass a million left horizontally from the inspiration, and seven down in case you multiply it by technique of i you get -i - 7(i^2) yet i^2 = -a million so as this is -i + 7 so which you may pass 7 left and a million down, and that's been circled touching directly to the inspiration ninety stages counterclockwise, in basic terms as I promised.

Answer 5

You just have to collect like-terms.

(2+7i) + (3-6i)
2 + 7i + 3 - 6i
5 + i

Answer 6

= (2 + 3) + (7 - 6) i
= 5 + i

Answer 7

2+7i+3-6i
2+3+7i-6i
answer 5+i

Answer 8

(2+7i)+(3-6i)
2+7i+3-6i
5+i

Answer 9

5+i

Add the real and imaginary terms separately.

Answer 10

my answer is : 5+i