A) \[\frac{2\sqrt{8}}{15}\]
B) \[\frac{8}{15}\]
C) \[\frac{\sqrt{2}}{17}\]
D) \[\frac{8\sqrt{2}}{17}\]
Correct Answer: B
Solution :
cos\[x\] + cosy = 2 \[\because \cos \,x\,\underline{<}\,\,I\] \[\Rightarrow \]\[\cos \,x=1\,\,;\,\,\cos y=1\] \[\Rightarrow \]\[x=y=0{}^\circ \] \[\therefore \]sin \[x\] + sin y = 0You need to login to perform this action.
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