If | \stackrel{-}{a}|=| {b^{-}}|=2 and {\\alpha}= {a^{-}}- {b^{-}}, {\\beta^{-}}= {a^{-}}+ {b^{-}} then | {\\alpha^{-} \times{\\beta^{-}}|=

Correct Answer is : 2√16−(−a.−b)2

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

2\sqrt{4-( {a^{-} .{b^{-}})^{2}}

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

\sqrt{4-( {a^{-} .{b^{-}})^{2}}

AP and TS EAMCET Engineering Model Paper 3

Question : 39 of 160

Marks: +1, -0

If |

−

|=|

−

|=2 and α=

−

then |

−

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