Question 1 Report
Find the minimum value of X2 - 3x + 2 for all real values of x
Answer Details
y = X2 - 3x + 2, dydx d y d x = 2x - 3 at turning pt, dydx d y d x = 0 ∴ 2x - 3 = 0 ∴ x = 32 3 2 d2ydx2 d 2 y d x 2 = ddx d d x (ddx d d x ) = 270 ∴ ymin = 232 3 2 - 332 3 2 + 2 = 94 9 4 - 92 9 2 + 2 = -14
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