4
QuizMultiple Choice
Dot Product and Work — Unit test
Question 4 of 10 • Precalculus
Given vector u = ⟨1, ⟩ and v = ⟨1, –1⟩, how are the vectors related?
Answer
A
The vectors form an acute angle of approximately 75°.B
The vectors form an acute angle of approximately 81°.C
The vectors form an obtuse angle of approximately 99°.D
The vectors form an obtuse angle of approximately 105°.