InterviewSolution
Saved Bookmarks
| 1. |
सरल कीजिए : `costheta[{:(costheta,sintheta),(-sintheta,costheta):}]+sintheta[{:(sintheta,-costheta),(costheta,sintheta):}]` |
|
Answer» `costheta[{:(costheta,sintheta),(-sintheta,costheta):}]+sintheta[{:(sintheta,-costheta),(costheta,sintheta):}]` `=[{:(cos^(2)theta,sinthetacostheta),(-sinthetacostheta,costheta):}]+[{:(sin^(2)theta,-sinthetacostheta),(sinthetacostheta," "sin^(2)theta):}]` `=[{:(cos^(2)theta+sin^(2)theta,sinthetacostheta-sinthetacostheta),(-sinthetacostheta+sinthetacostheta," "cos^(2)theta+sin^(2)theta):}]` `[{:(1,0),(0,1):}]` |
|