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Set Up an Integral for the Length of the Curve x=8tany,0yπ4\mathrm { x } = 8 \tan \mathrm { y } , 0 \leq \mathrm { y } \leq \frac { \pi } { 4 }

Question 213

Multiple Choice

Set up an integral for the length of the curve.
- x=8tany,0yπ4\mathrm { x } = 8 \tan \mathrm { y } , 0 \leq \mathrm { y } \leq \frac { \pi } { 4 }


A) 0π/41+64sec4ydy\int _ { 0 } ^ { \pi / 4 } \sqrt { 1 + 64 \sec ^ { 4 } y } d y
B) 0π/4164sec2ydy\int _ { 0 } ^ { \pi / 4 } \sqrt { 1 - 64 \sec ^ { 2 } y } d y
C) 0π/41+64sec2ydy\int _ { 0 } ^ { \pi / 4 } \sqrt { 1 + 64 \sec ^ { 2 } y } d y
D) 0π/41+8sec4ydy\int _ { 0 } ^ { \pi / 4 } \sqrt { 1 + 8 \sec ^ { 4 } y } d y

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