Using a calculator, the values to the nearest 10 thousands are
1)[tex] \sin 67^o=0.9205 [/tex]
2)[tex] \cos 34^o=0.8290 [/tex]
3) The given fraction is [tex] \frac{4\sqrt{6}}{\sqrt{30}} [/tex]. Rationalizing the denominator,
[tex] \frac{4\sqrt{6}}{\sqrt{30}} =\frac{4\sqrt{6}}{\sqrt{30}} \frac{\sqrt{30}}{\sqrt{30}} \\
=\frac{4\sqrt{180}}{30} \\
=\frac{24\sqrt{5}}{30} \\
=\frac{4\sqrt{5}}{5} [/tex]
