Jawab:
notasi sigma
Penjelasan dengan langkah-langkah:
no. 1
₁¹²∑ a² =650 dan ₁¹²∑ a = 126
.
nilai dari ₁¹²∑ (3a -2)² = ₁¹²∑ (9a²- 12 a + 4)
= 9 . ₁¹²∑a² - 12 . ₁¹²∑ a + 4 ₁¹²∑ 1
= 9 (650) -12(126) + 4 (12)
= 4.386
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Jawab:
notasi sigma
Penjelasan dengan langkah-langkah:
no. 1
₁¹²∑ a² =650 dan ₁¹²∑ a = 126
.
nilai dari ₁¹²∑ (3a -2)² = ₁¹²∑ (9a²- 12 a + 4)
= 9 . ₁¹²∑a² - 12 . ₁¹²∑ a + 4 ₁¹²∑ 1
= 9 (650) -12(126) + 4 (12)
= 4.386