- a-b-a- b - is equal to

The correct option is B | a× b |^2 [ a,b,a× b ] = (a× b)· (a× b) = |a× b||a× b|cos 0 = |a× b|^2 ...

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Byju's Answer

Standard XII

Mathematics

Property 4

[ a,b,a× b ] ...

Question

$[a, b, a \times b]$ is equal to

| a \times b |

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{| a \times b |}^{2}

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| a \cdot b |

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| a | | b |

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Solution

The correct option is B ${| a \times b |}^{2}$
$[a, b, a \times b] = (a \times b) \cdot (a \times b) = | a \times b | | a \times b | cos 0 = | a \times b |^{2}$

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[a,b,a×b] is equal to

The correct option is B |a×b|2[a,b,a×b]=(a×b)⋅(a×b)=|a×b||a×b|cos0=|a×b|2

$[a, b, a \times b]$ is equal to

The correct option is B ${| a \times b |}^{2}$
$[a, b, a \times b] = (a \times b) \cdot (a \times b) = | a \times b | | a \times b | cos 0 = | a \times b |^{2}$