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topjm [15]
2 years ago
15

Find the equation of the line tangent to the graph of f(x)=(lnx)^(4)at x=10

Mathematics
1 answer:
Diano4ka-milaya [45]2 years ago
4 0

Hello,

Step-by-step explanation:

f(x) = ln(x) {}^{4}

(ln(u)') =  \frac{u'}{u}

f'(x) =  \frac{4ln {}^{} (x) {}^{3} }{x}

f'(10) =  \frac{4ln {}^{} (10) {}^{3} }{10}  =  \frac{12ln(x)}{x}

f(10) = ln(10) {}^{4}

y =  \frac{12ln(x)}{x} (x - 10) + 4ln(10)

y = f'(a)(x - a) + f(a)

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Answer:

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Step-by-step explanation:

length = 15 feet

width = 8 feet

Pythagorean theorem,

(diagonal)² = (length)² +(width)²            {all angles of rectangle are 90°}

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 (2x+5y=60)
- (2x-5y=-20)
-------------------
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