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Author Question: Determine the concavity of f(x) = cos x + sin x on [0, 2] and identify any points of inflection. (Read 63 times)

waynest

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on: May 26, 2021

Question 1

The function  f(x) = 3x5 + Ax4 + Bx3  has inflection points at  x = 0,  x = -1,  and  x = 1.  Find the values of the constants  A  and  B.
◦ A has any value,  B = 10
◦ A = 10,  B = 0
◦ A has any value,  B = -10
◦ A = 0,  B = 10
◦ A = 0,  B = -10

Question 2

Determine the concavity of f(x) = cos x + sin x on [0, 2π] and identify any points of inflection.
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Marked as best answer by waynest on May 26, 2021

kishoreddi

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Reply #1 on: May 26, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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waynest

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Reply 2 on: May 26, 2021
:D TYSM

helenmarkerine

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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