The heights h (in inches) of pistons 1 and 2 in an automobile engine can be modeled by h₁ -3.75 sin(7421) + 7.1 and h₂-3.75 sin(742(t))+7 respectively, where t is measured in seconds. = +7.1 Use a graphing utility to graph the heights of these pistons in the same viewing window for 0 st≤ 1. How often (in times/sec) are the pistons at the same height? (Round your answer to one decimal place.) times/sec Need Help? Read It + Show My Work (Optional)? Submit Answer W E LL S D R View Previous Question Question 21 of 23 View Next Question F LL 5 G H 7 8 K

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