If \ov { u } = \ov { a } - \ov { b } , \ov { v } = \ov { a } + \ov { b } and | \ov { a } | = 2 = | \ov { b } | then | \ov { u } \times\ov { v } | =

Correct Answer is : 2√16−(a.b)2

\sqrt { 16 - ( \ov { a } . \ov { b } ) ^ { 2 } }

\sqrt { 16 +( \ov { a } . \ov { b } ) ^ { 2 } }

2\sqrt { 16 +( \ov { a } . \ov { b } ) ^ { 2 } }

2\sqrt { 16 - ( \ov { a } . \ov { b } ) ^ { 2 } }

AP and TS EAMCET Engineering Model Paper 9

Question : 11 of 160

Marks: +1, -0

If u=a−b,v=a+b and |a|=2=|b| then |u×v|=

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