MCQs of નિશ્વાયક

Showing 1 to 10 out of 83 Questions
1.
= ____
 (a) 18x (b) 0 (c) 1 (d) $18{x}^{3}\phantom{\rule{0ex}{0ex}}$
2.
$\left|\begin{array}{cc}2008& 2009\\ 2010& 2011\end{array}\right|$ નું મૂલ્ય _____ છે.
 (a) -1 (b) 1 (c) -2 (d) 2
3.
= _____
 (a) x + y + z (b) (c) 3 (d) 0
4.
$\left|\begin{array}{cc}\mathrm{sin}{40}^{\mathrm{ο}}& -\mathrm{cos}{40}^{\mathrm{ο}}\\ \mathrm{sin}{50}^{\mathrm{ο}}& \mathrm{cos}{50}^{\mathrm{ο}}\end{array}\right|\phantom{\rule{0ex}{0ex}}$ = _____
 (a) 0 (b) 1 (c) -1 (d) નું અસ્તિત્વ નથી
5.
જો પર R12(-1) ક્રિયા કરતાં D _____ થાય.
 (a) (b) (c) (d)
6.
$\left|\begin{array}{ccc}{5}^{2}& {5}^{3}& {5}^{4}\\ {5}^{1}& {5}^{2}& {5}^{3}\\ {5}^{3}& {5}^{4}& {5}^{5}\end{array}\right|\phantom{\rule{0ex}{0ex}}$ = _____
 (a) ${5}^{9}\phantom{\rule{0ex}{0ex}}$ (b) ${5}^{12}\phantom{\rule{0ex}{0ex}}$ (c) ${5}^{0}\phantom{\rule{0ex}{0ex}}$ (d) $0\phantom{\rule{0ex}{0ex}}$
7.
જો અને , તો _____
 (a) (b) (c) (d)
8.
જો a ≠ 0, b ≠ 0, c ≠ 0 અને = 0, તો x = _____
 (a) 1 (b) 0 (c) a + b + c (d) -(a + b + c)
9.
જો x, y, z ∈ R, x > y > z, તો D = એ _____ છે.
 (a) ઋણ (b) ઘન (c) શૂન્ય (d) વાસ્તવિક નથી.
10.
જો D = $\left|\begin{array}{ccc}1& \mathrm{cos\theta }& 1\\ -\mathrm{cos\theta }& 1& \mathrm{cos\theta }\\ -1& -\mathrm{cos\theta }& 1\end{array}\right|$, તો D _____ અંતરાલમાં છે.
 (a) (b) (2, 4) (c) [2, 4] (d) [-2, 2]
Showing 1 to 10 out of 83 Questions