Question: a) Using Exercise 4.4.4, prove that for all x [0, Ï/2]. b) For x [0, Ï/2] sin x = -(2k + 1)! cosx = 0

a) Using Exercise 4.4.4, prove that
A) Using Exercise 4.4.4, prove that for all x ˆˆ [0,

for all x ˆˆ [0, Ï€/2].
b)

A) Using Exercise 4.4.4, prove that for all x ˆˆ [0,

For x ˆˆ [0, Ï€/2]

sin x = -(2k + 1)! cosx = 0

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