ap-calculus-ab None Q12

ap-calculus-ab · Usa · -bc_sample-questions Stationary points and optimisation Determine intervals of increase/decrease or monotonicity conditions

The derivative of a function $f$ is given by $f ^ { \prime } ( x ) = e ^ { \sin x } - \cos x - 1$ for $0 < x < 9$. On what intervals is $f$ decreasing?
(A) $0 < x < 0.633$ and $4.115 < x < 6.916$
(B) $0 < x < 1.947$ and $5.744 < x < 8.230$
(C) $0.633 < x < 4.115$ and $6.916 < x < 9$
(D) $1.947 < x < 5.744$ and $8.230 < x < 9$

The derivative of a function $f$ is given by $f ^ { \prime } ( x ) = e ^ { \sin x } - \cos x - 1$ for $0 < x < 9$. On what intervals is $f$ decreasing?\\
(A) $0 < x < 0.633$ and $4.115 < x < 6.916$\\
(B) $0 < x < 1.947$ and $5.744 < x < 8.230$\\
(C) $0.633 < x < 4.115$ and $6.916 < x < 9$\\
(D) $1.947 < x < 5.744$ and $8.230 < x < 9$

Paper Questions

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