misal: u=(x+2). u'=1
v=(1-2x)². v'=2(1-2x)(-2)=-4(1-2x)
aturan turunan utk pembagian
D(u/v) = (u'.v - u.v')/v² = [(1)(1-2x)² - (x+2)(-4)(1-2x)]/(1-2x)⁴ = [(1-2x)²+(x+2)(1-2x)]/(1-2x)⁴
substitusi nilai x = -3
f'(-3)=[(1-2(-3))²+(-3+2)(1-2(-3))]/(1-2(-3)) = [(7)²+(-1)(7)]/7 = (49-7)/7 = 42/7 = 6
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misal: u=(x+2). u'=1
v=(1-2x)². v'=2(1-2x)(-2)=-4(1-2x)
aturan turunan utk pembagian
D(u/v) = (u'.v - u.v')/v² = [(1)(1-2x)² - (x+2)(-4)(1-2x)]/(1-2x)⁴ = [(1-2x)²+(x+2)(1-2x)]/(1-2x)⁴
substitusi nilai x = -3
f'(-3)=[(1-2(-3))²+(-3+2)(1-2(-3))]/(1-2(-3)) = [(7)²+(-1)(7)]/7 = (49-7)/7 = 42/7 = 6