A) 0
B) 1
C) 2
D) 3
Correct Answer: C
Solution :
\[O{{A}^{2}}={{\cos }^{2}}\alpha +{{\sin }^{2}}\alpha =1\] and \[O{{B}^{2}}={{\sin }^{2}}\alpha +{{\cos }^{2}}\alpha =1\]. Hence\[O{{A}^{2}}+O{{B}^{2}}=1+1=2\].You need to login to perform this action.
You will be redirected in
3 sec