Write and simplify, but do not evaluate, an integral with re…
Write and simplify, but do not evaluate, an integral with respect to x that gives the length of each of the following curves on their respective interval. ( a ) y = 3 x , 1 ≤ x ≤ 5 ( b ) y = 2 cos x , 0 ≤ x ≤ π {“version”:”1.1″,”math”:”(a)\ \ y=\frac{3}{x},\quad \ \ 1\leq x\leq 5\\ (b)\ \ y=2\cos x, \quad \ \ 0\leq x\leq \pi “}
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