The lengths of two vectors a and b, and the angle $\theta$between them, are given. Find the length of their cross product, $| \mathbf { a } \times \mathbf { b } |$
. $| \mathbf { a } | = 4 , \mathbf { b } \mid = 5 , \theta = 60 ^ { \circ }$

Question

The lengths of two vectors a and b, and the angle $\theta$between them, are given. Find the length of their cross product, $| \mathbf { a } \times \mathbf { b } |$ 
. $| \mathbf { a } | = 4 , \mathbf { b } \mid = 5 , \theta = 60 ^ { \circ }$

Quizplus · Accepted Answer

The Answer of The lengths of two vectors a and b, and the angle $\theta$between them, are given. Find the length of their cross product, $| \mathbf { a } \times \mathbf { b } |$ 
. $| \mathbf { a } | = 4 , \mathbf { b } \mid = 5 , \theta = 60 ^ { \circ }$

The Lengths of Two Vectors a and B, and the Angle