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hitung angka terakhirnya aja:
1 + 4 + 9 + 6 + 5 + 6+ 9 + 4 + 1 + 0 = 5 ← ada 10 pola
maka 5 x 10 = 50, angka satuannya adalah 0
23. 17²⁰¹⁴ + 3⁵⁰
17¹ = 7 3¹ = 3
17² = 9 3² = 9
17³ = 3 3³ = 7
14⁴ = 1 3⁴ = 1
17⁵ = 7 ← (perulangan tiap 4) 3⁵ = 3 (sama)
17²⁰¹⁴⁻²°¹² + 3⁵⁰⁻⁴⁸
= 17² + 3²
= 9 + 9
= 8
24. sama kayak atas, cari perulangannya
2⁶+7² = 64+49
= 13