Evaluate the expression (5 + 2i) - (-3- i) and write the result in the form a +bi.
1 answer:
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The coordinates of Q are (-1,6)
Further Explanation:
Given points are:
The formula for mid-pint is:
The coordinates of Q are (-1,6)
Keywords: Coordinate geometry, mid-point
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The distance between the points is
Step-by-step explanation:
The formula of the distance between two points and
is
To find the distance between two point:
- Put one of the two point as
- Put the other point as
- Substitute then in the rule of the distance and calculate the distance
∵ The two points are (18 , -2) and (6 , -10)
- Put (18 , -2) as and (6 , -10) as
∴ = 18 and
= 6
∴ = -2 and
= -10
- Substitute them in the rule below
∵
∴
∴
∴
∵ (-12)² = 144 and (-8)² = 64
∴
∴
∵
∴
The distance between the points is
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