Find the length of the curve. r(t) = cos(6t) i + sin(6t)j + 6 In(cos(t)) k, 0

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Q: ) l=38 and = 66 , and the angle between i and v is 17'. round to two decimal places)

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Q: 4. How many fixed points does the function T(x) tan(x) have?

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A: Solution