tolong kak besok dikumpulin
Jawaban:
[tex]a. \: ( \sqrt{2} + \sqrt{3}) (\sqrt{2} + \sqrt{3}) = \\ 2 + \sqrt{6} + \sqrt{6 } + 3 = \\ 5 + \sqrt{12 } = \\ 5 + \sqrt{4.3 } = \\ 5 + 2 \sqrt{3} [/tex]
[tex]b. \: (2 \sqrt{3} + 3 \sqrt{5} )(2 \sqrt{3} - 3 \sqrt{5} ) = \\ 2.3 - 6 \sqrt15 + 6 \sqrt{15} - 9.5 = \\ 6 - 45 = \\ - 39[/tex]
[tex]c. \: (2 \sqrt{6} - 3 \sqrt{8} )(2 \sqrt{3} - 3 \sqrt{2} ) = \\ 4 \sqrt{18} - 6 \sqrt{12} - 6 \sqrt{24} + 9 \sqrt{16} = \\ 4 \sqrt{9.2} - 6 \sqrt{4.3} - 6 \sqrt{4.6} + 9.4 = \\ 4.3 \sqrt{2} - 6.2 \sqrt{3} - 6.2 \sqrt{6} + 36 \\ 12 \sqrt{2} - 12 \sqrt{3} - 12 \sqrt{6} + 36[/tex]
Jawaban:
a.(√2+√3)(√2+√3)=
2+√6+√6+3= 5√6
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