MCQ
$\left| {\begin{array}{{}{c}}{\cos {{55}^0}}&{\sin {{55}^0}}\\{\sin {{35}^0}}&{\cos {{35}^0}}\end{array}} \right| = .......$
- ✓$0$
- B$1$
- C$-1$
- Dનું અસ્તિત્વ નથી.
$\left| {\begin{array}{{}{c}}{\cos {{55}^0}}&{\sin {{55}^0}}\\{\sin {{35}^0}}&{\cos {{35}^0}}\end{array}} \right| = \cos {55^0}\cos {35^0} - \sin {55^0}\sin {35^0}$
$=cos(55+35)^0$
$=cos90^0$
$=0$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.