MCQ
જો $a, b, c$ અસમતલીય સદિશો હોય તો $d=\lambda a + \mu\,\,b + \nu c $ તો $\lambda$ = ……
- A$\frac{{[d\,b\,c]}}{{[b\,a\,c]}}$
- B$\frac{{[b\,c\,d]}}{{[b\,c\,a]}}$
- C$\frac{{[b\,d\,c]}}{{[a\,b\,c]}}$
- D$\frac{{[c\,b\,d\,]}}{{[a\,b\,c]}}$
$\therefore \,\,d.(b \times c) = \lambda \,a.(b \times c) + \mu \,b.(b \times c) + \mu \,c.(b \times c)$
$ = \lambda \left[ {a\,b\,c} \right]\,\, $
$\Rightarrow \,\,\lambda = \frac{{[d\,b\,c]}}{{[a\,b\,c]}}\,\, = \frac{{[b\,c\,d]}}{{[b\,c\,a]}}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.