\(15+2\sqrt{35}+2\sqrt{15}+2\sqrt{21}=3+5+7+\left(2\sqrt{3}.\sqrt{5}+2\sqrt{5}.\sqrt{7}+2\sqrt{7}.\sqrt{3}\right)\)
\(=\left(\sqrt{3}+\sqrt{5}+\sqrt{7}\right)^2\)
Tính
a,8+2\(\sqrt{15}\)
b,12+2\(\sqrt{35}\)
c,8+\(\sqrt{60}\)
Thực hiện phép tính:
1/\(\left(3\sqrt{5}-2\sqrt{3}\right)\sqrt{5}+\sqrt{60}\)
2/\(\left(\sqrt{28}-2\sqrt{3}+\sqrt{7}\right)\sqrt{7}+\sqrt{84}\)
\(\left(\sqrt{4+\sqrt{15}}+\sqrt{6-\sqrt{35}}-\sqrt{\frac{7}{2}}\right)^2\)\(+\left(\sqrt{4-\sqrt{15}}-\sqrt{6-\sqrt{35}}+\sqrt{\frac{3}{2}}\right)^2\)
TÍNH GIÁ TRỊ Ạ
\(14\sqrt{x+35}+6\sqrt{x+1}=84+\sqrt{x^2+36+35}\)
giải pt
\(14\sqrt{x+35}+6\sqrt{x+1}=84+\sqrt{x^2+36x+35}\)
Tính:
1) \(\sqrt{14-2\sqrt{33}}\)
2) \(\sqrt{12-2\sqrt{35}}\)
3) \(\sqrt{16-2\sqrt{55}}\)
4) \(\sqrt{14-6\sqrt{5}}\)
5) \(\sqrt{17-12\sqrt{2}}\)
6) \(\sqrt{27-12\sqrt{5}}\)
7) \(\sqrt{4+\sqrt{15}}\)
LÀM CHI TIẾT GIÚP MK NHÉ!
\(\dfrac{\sqrt{10}-\sqrt{15}}{\sqrt{8}-\sqrt{12}}\)
\(\dfrac{\sqrt{6}-\sqrt{15}}{\sqrt{35}-\sqrt{14}}\)
\(\dfrac{5+\sqrt{5}}{\sqrt{10}+\sqrt{2}}\)
GPT:
\(14\sqrt{x+35}+6\sqrt{x+1}=84+\sqrt{x^2+36x+35}\)
\(\dfrac{2\sqrt{30}}{\sqrt{5}+\sqrt{6}+\sqrt{7}} \)
\(\sqrt{24}+6\sqrt{\dfrac{2}{3}+\dfrac{10}{\sqrt{6}-1}}\)
\(\dfrac{2\sqrt{15}+\sqrt{16}}{\sqrt{84}+\sqrt{6}}\)
\(2\sqrt{40\sqrt{2}}-2\sqrt{\sqrt{75}}-3\sqrt{5\sqrt{48}}\)
\(\dfrac{\left(2+\sqrt{3}\right)^2-1}{\left(\sqrt{3}+1\right)^2}:\dfrac{\left(3+\sqrt{5}\right)^2-4}{\left(\sqrt{5}+1\right)^2}\)
giúp em với ạ
