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Find angle x, given that
sinx=615125\sin x=\frac{6\sqrt{15}}{12\sqrt{5}}sinx=125615
x=45°x=45°x=45°
x=60°x=60°x=60°
Find angle x, given that cosx=438\cos x=\frac{4\sqrt{3}}{8}cosx=843
x=30°x=30°x=30°
Find angle y, given that
cosy=48\cos y=\frac{4}{8}cosy=84
y=45°y=45°y=45°
y=30°y=30°y=30°
cosy=35320\cos y=\frac{3\sqrt{5}}{3\sqrt{20}}cosy=32035
y=55°y=55°y=55°
siny=35310\sin y=\frac{3\sqrt{5}}{3\sqrt{10}}siny=31035
tany=232\tan y=\frac{2\sqrt{3}}{2}tany=223
y=60°y=60°y=60°
tanx=515\tan x=\frac{\sqrt{5}}{\sqrt{15}}tanx=155
x=30°x=30°x=30°
Find angle x, given that sinx= 6151215\sin x=\ \frac{6\sqrt{15}}{12\sqrt{15}}sinx= 1215615
Find angle x, given that cosx=6151215\cos x=\frac{6\sqrt{15}}{12\sqrt{15}}cosx=1215615
sin24\sin\frac{2}{4}sin42
It is done.