Ex 7.1, 12
Last updated at Dec. 8, 2016 by Teachoo
Transcript
Ex 7.1, 12 𝑥3+ 3𝑥 + 4 𝑥𝑑𝑥 𝑥3+ 3𝑥 + 4 𝑥𝑑𝑥 = 𝑥3 𝑥 + 3𝑥 𝑥 + 4 𝑥𝑑𝑥 = 𝑥3 𝑥 12 + 3𝑥 𝑥 12 + 4 𝑥 12𝑑𝑥 = 𝑥3 − 12 +3 𝑥1 − 12 +4 𝑥− 12𝑑𝑥 = 𝑥 52 +3 𝑥 12 +4 𝑥− 12𝑑𝑥 = 𝑥 52𝑑𝑥+3 𝑥 12𝑑𝑥+4 𝑥− 12𝑑𝑥 = 𝑥 52 + 1 52 + 1 + 3 𝑥 12 + 1 12 + 1 + 4 𝑥− 12 + 1− 12 + 1+𝐶 = 𝑥 72 72 + 3 𝑥 32 32 + 4 𝑥 12 12 +𝐶 = 2 𝑥 727+ 2 × 3 𝑥 32 3 +4×2 𝑥 12+𝐶 = 𝟐 𝒙 𝟕𝟐𝟕+𝟐 𝒙 𝟑𝟐 +𝟖 𝒙+𝑪
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