Attempt following question by selecting a choice to answer.
f
Find the value in the interval, which satisfies the Mean Value Theorem for the function
f(x) = 4x3 - 5x2 + x - 2 on
[0, 1].DDD fffA.
f5+134B.
f5+136C.
f5-1312D.
f14E.
f- 2
ff
C
Step 1: f(x) = 4x3 - 5x2 + x - 2[Write the function.]
Step 2: Since f(x) is continuous in [0, 1] and differentiable in (0, 1), Mean Value Theorem is applicable.
Step 3: f(0) = 4(0)3 - 5(0)2 + 0 - 2 = - 2[Find f(0).]
Step 4: f(1) = 4(1)3 - 5(1)2 + 1 - 2 = - 2[Find f(1).]
Step 5: f ′(x) = 12x2 - 10x + 1[Find f ′(x).]
Step 6: f ′(c) = 12c2 - 10c + 1[Find f ′(c).]
Step 7: By Mean Value Theorem, there exists c ∈ (0, 1) such that f ′(c) = f(1)-f(0)1-(0).
Step 8: 12c2 - 10c + 1 = -2-(-2)1-0
Step 9: 12c2 - 10c + 1 = 0
Step 10: c = 5-1312, 5+1312 ∈ (0, 1)
[Use quadratic formula.]
Step 11: At x = 5+1312, 5-1312 in (0, 1), the function f(x) satisfies the Mean Value Theorem.