Find $| \mathbf { a } \times \mathbf { b } |$

question 216

Multiple Choice

Find $| \mathbf { a } \times \mathbf { b } |$ , given that $| \mathbf { a } | = 2$ , $| \mathbf { b } | = 5$ , and the angle between a and b is $\frac { 5 \pi } { 6 }$ .

• A) \(5 \sqrt { 5 }\)
• B) \(5 \sqrt { 2 }\)
• C)10
• D)5
• E) \(5 \sqrt { 3 }\)
• F) \(\frac { 5 \sqrt { 2 } } { 2 }\)
• G) \(- 5 \sqrt { 5 }\)
• H)-5

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