Perpendicular projection
Determine the distance of a point B[1, -3] from the perpendicular projection of a point A[3, -2] on a straight line 2 x + y + 1 = 0.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- geometry
- analytic geometry
- vector
- scalar product
- algebra
- intersection of sets
- planimetrics
- Pythagorean theorem
Units of physical quantities:
Grade of the word problem:
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