Repeat Exercise 8 for a rotation of = /3 counterclockwise about the y-axis (looking along the

Repeat Exercise 8 for a rotation of θ = π/3 counterclockwise about the y-axis (looking along the positive y-axis toward the origin)
Exercise 8
Let a rectangular xʹyʹzʹ -coordinate system be obtained by rotating a rectangular xyz-coordinale system counterclockwise about the z-axis (looking down the z-axis) through the angle θ = π / 4.