Let vector a with components negative seven comma three and vector b with components negative two comma negative twelve , and c is equal to A plus b What is the magnitude and direction angle of vector c ?
Answer
A
magnitude of vector c is equal to 18 ; theta is equal to 135 degrees
B
magnitude of vector c is equal to 9 square root of 2 ; theta is equal to 225 degrees
C
magnitude of vector c is equal to 18 ; theta is equal to 225 degrees
D
magnitude of vector c is equal to 9 square root of 2 ; theta is equal to 135 degrees