18. Z-N(0, 1). Find P(Z < 2.18). A) 0.9857 B) 0.9854 C) 0.0146 D) 0.0143

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Q: 39. f(x) = x²/3 - 3

A: The second derivative test is not applicable here

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A: The given function is: y=2x-tan x ;                 -π2, π2

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