What??????????????????????????????
15%=15/100=3/20=0,15=15%
What??????????????????????????????
15%=15/100=3/20=0,15=15%
Tính: C=\(\sqrt{15+\sqrt{15+\sqrt{15+\sqrt{15+...}}}}\)
2) \(\dfrac{\sqrt{108}}{\sqrt{3}}\)
13) \(\sqrt{8-2\sqrt{15}}\)- \(\sqrt{23-4\sqrt{15}}\)
14) ( 4+ \(\sqrt{15}\) ) (\(\sqrt{10}\)- \(\sqrt{6}\) ) \(\sqrt{4-\sqrt{15}}\)
Rút gọn biểu thức sau: A=\sqrt{\left(4-\sqrt{15}\right)^2}+\sqrt{\left(\sqrt{15}-3\right)^2}A=(4−15)2+(15−3)2
15+15=...
\(\frac{\sqrt{\sqrt{15}-\sqrt{6}}+\sqrt{\sqrt{15}+\sqrt{6}}}{\sqrt{\sqrt{15}+3}}\)
(4+√15).(√10-√6).√(4-√15)
tính D = \(cos\frac{\pi}{15}.\cos\frac{2\pi}{15}....cos\frac{7\pi}{15}\)
Rút gọn: \(\frac{\sqrt{\sqrt{15}-\sqrt{6}}+\sqrt{\sqrt{15}+\sqrt{6}}}{\sqrt{\sqrt{15}+3}}\)
Tìm số dư của phép chia:\(15^{15^{15}}\) cho \(49\)
rút gọn hộ mik vs
4)\(\sqrt{8+2\sqrt{15}}\) -\(\sqrt{8-2\sqrt{15}}\)
5)\(\sqrt{5+2\sqrt{6}}\) +\(\sqrt{8-2\sqrt{15}}\)