Bentuk rasional penyebut dari $$\ \frac{5}{2-\sqrt{3}}$$ adalah...............................

D. $$5\ \left(2\ +\sqrt[]{3}\right)$$

A. $$5\ \left(\sqrt[]{3}\ +2\right)$$

C. $$\left(-2\ +\sqrt[]{3}\ \right)$$

E. $$6\ \left(2\ +\sqrt[]{3}\right)$$

Sebuah barisan aritmetika dirumuskan $$U_n=\ 5n\ -1$$ . Sedangkan rumus S n adalah ................

A. $$S_n=\frac{1}{2}\ \left(5n^2\ +3n\right)$$

B. $$S_n=\frac{1}{2}\ \left(5n+\ 4n\right)$$

C. $$S_n=\frac{1}{2}\ \left(5n^2\ +3\right)$$

D. $$S_n=\frac{1}{2}\ \left(5n\ +3n^2\right)$$

E. $$S_n=\frac{1}{2}\left(3n^{\ 2}\ +5n\right)$$

matematika kelas x ujian semester ganjil

Authored by syarifah rauzah syarifahrauzah06@gmail.com

Mathematics

9th - 12th Grade

CCSS covered

Used 12+ times

matematika kelas x ujian semester ganjil

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