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Let vec a , vec b ,a n d vec c be non-z...

Let ` vec a , vec b ,a n d vec c` be non-zero vectors and ` vec V_1= vec axx( vec bxx vec c)a n d vec V_2=( vec axx vec b)xx vec c.` Vectors ` vec V_1a n d vec V_2` are equal. Then (a).` vec aa n vec b` are orthogonal (b). ` vec aa n d vec c` are collinear (c). ` vec ba n d vec c` are orthogonal (d). ` vec b=lambda( vec axx vec c)w h e nlambda` is a scalar

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