A) \[\frac{12}{5}\]
B) \[\frac{5}{12}\]
C) \[\frac{13}{5}\]
D) \[\frac{12}{13}\]
Correct Answer: D
Solution :
(d) \[\phi +\theta ={{90}^{{}^\circ }}\] \[\phi =\left( 9{{o}^{{}^\circ }}-\theta \right)\] \[cos\phi =cos\left( 90-\theta \right)\] \[=\sin \theta \] \[sin\theta =\frac{12}{13}\]
You need to login to perform this action.
You will be redirected in
3 sec
