Determine a definite integral that represents the arc length of r=7cos(θ)\displaystyle {r}={7}{\cos{{\left(\theta\right)}}}r=7cos(θ), 0≤θ≤π2\displaystyle {0}\le\theta\le\frac{\pi}{{2}}0≤θ≤2π.
∫0π2\displaystyle {\int_{{0}}^{{\frac{\pi}{{2}}}}}∫02π Preview Question 1 dθ\displaystyle {d}\thetadθ
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