Vectors

Step 1: Use the given vector relation.
Step 2: Take cross product with .
Step 3: Apply distributive property of cross product.
Step 4: Use properties of cross product. So,
Step 5: Use anti-commutative property. Hence, Final Answer:

Step 1: Recall the formula for angle between vectors. For vectors and , the tangent of the angle between them is:
Step 2: Find . Angle is between and : Since , Also, Hence,
Step 3: Find . Angle is between and : Thus,
Step 4: Add . Final Answer: