3.2 Practice Flashcards

0
Q

Determine whether Rolle’s Theorem can be applied:

f(x) = cos(2x) [-π, π]

If it can, find the value of c guaranteed by the theorem.

A

Rolle’s Theorem applies.

c = -π/2, 0, π/2

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1
Q

Determine whether Rolle’s Theorem can be applied:

f(x) = x^(2/3) - 1 [-8, 8]

If it can, find the value of c guaranteed by the theorem.

A

No, Rolle’s Theorem doesn’t apply. f(x) is not differentiable at x=0

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2
Q

Determine whether the MVT can be applied:

f(x) = x^4 - 8x [0, 2]

If it can, find the value of c guaranteed by the theorem.

A

MVT applies

c = 2^(1/3)

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3
Q

Determine whether the MVT can be applied:

f(x) = | 2x + 1 | [-1, 3]

If it can, find the value of c guaranteed by the theorem.

A

No, MVT doesn’t apply. f(x) is not differentiable at x = -1/2

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