Product=multiplication
Sum=addition
Difference=subtraction
Quotient=division
Quantity=parentheses
The angle between two vectors is given by:
cos (x) = (v1.v2) / (lv1l * lv2l)
We have then:
v1.v2 = (2, -5). (4, -3)
v1.v2 = (2 * 4) + (-5 * (- 3))
v1.v2 = 8 + 15
v1.v2 = 23
We look for the vector module:
lv1l = root ((2) ^ 2 + (-5) ^ 2)
lv1l = 5.385164807
lv2l = root ((4) ^ 2 + (-3) ^ 2)
lv2l = 5
Substituting values:
cos (x) = (23) / ((5.385164807) * (5))
x = acos ((23) / ((5.385164807) * (5)))
x = 31.33 degrees
Answer:
The angle between the two vectors is:
x = 31.33 degrees
Answer:
The answer to your question is 13 units
Step-by-step explanation:
Data
A (1, 9)
B (-4, -3)
distance = ?
Formula
distance = 
Substitution
distance = 
Simplification
distance = 
distance = 
distance = 
Result
distance = 13
Sorry for my bad handwriting a notebook lol
