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Chapter 9: Q. 24 (page 632)

In Problems 23鈥�25, use the vectors u=2i-3j+kand v=-i+3j+2k.

Find the direction angles for u.

Short Answer

Expert verified

The direction angles are伪鈮�57.7掳,尾鈮�143.3掳,纬=74.5掳

Step by step solution

01

Step 1. Given information

The given vector isu=2i-3j+k

02

Step 2. Find the direction angles for u.

The direction angles will be

cos伪=222+-32+12cos伪=214伪=cos-1214伪鈮�57.7掳

cos尾=-322+-32+12cos尾=-314尾=cos-1-314尾鈮�143.3掳

cos纬=114纬=cos-1114纬鈮�74.5掳

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