Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 3i + 6j , v = i - j

A. 3; 3k
B. 3; -3k
C. 9; -9k
D. 9; -k


Answer: D

Mathematics

You might also like to view...

Divide and simplify.

A.  + 
B. -  - 
C. -  - 
D.  + 

Mathematics

Find the domain and the range of the relation.

A. domain: [-3] range: (-?, ?) B. domain: [-3] range: (?, -?) C. domain: (?, -?) range: [-3] D. domain: (-?, ?) range: [-3]

Mathematics

Assume that 0 < ? < ?/2. Find an expression for the indicated trigonometric function.Let x = 2 sin ? in . Find cos ?.

A.
B.
C.
D.

Mathematics

Use the properties of logarithms and the logarithm property of equality to solve the logarithmic equation.log(x + 5) = log(5x + 4)

A.
B.
C.
D.

Mathematics