Home > CALC > Chapter 11 > Lesson 11.1.3 > Problem 11-34
11-34.
For each vector drawn at right:
Rewrite the vector in both component and i, j form.
A = –1i + 3j
Find each vector's standard angle.
Solve tan(θ) = 3/1. This will solve for the angle in the slope triangle for A.
Recall that the standard angle is measured from the positive-axis. Find
and . Determine
. The double bars mean "the magnitude of". To calculate the magnitude of vector B, use the Pythagorean Theorem.