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3. The height of the tides at a certain spot in Nova Scotia can be found by the equation h(t) = 5sin(0.5t + 2) +

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3. The height of the tides at a certain spot in Nova Scotia can be found by the equation h(t) = 5sin(0.5t + 2) + 6, where t is the time in hours (using a 24 hour clock) and h is the height in metres. What is the rate of change of height at a time of 07:00 h

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