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BC Calculus Number 6
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Memorized Power Series in your Brain….
cos x ex sin x ln x
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General Term
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and Use what you just wrote down! Substitute for cos x
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General Term Clean up!
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Since the First Derivative equals 0 at x=0, x=0 is a critical point, so “neither” is not your answer, but you still have to take another derivative. Since the Second Derivative is positive at x=0 the graph is concave up, making the critical point at x=0 a minimum.
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The Fifth Degree Taylor Polynomial for g:
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Coefficients for the power series
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Use coefficients from previous slide
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Series from part (c)! Use the first 3 terms
Plug in 1 for x
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From the fifth degree polynomial in part (c)
The error in the estimate is less than or equal to the absolute value of the first neglected term! Plug in a 1 for x From the fifth degree polynomial in part (c) this is the first neglected term
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It's Over!
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