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1.for a short time after a wave is created by wind, the height of the wave can be modeled using y = a sin 2 pi t/ t, where a is the amplitude and t is the period of the wave in seconds.
how many times over the first 5 seconds does the graph predict that the wave to be 2ft high?
2.find all solutions of each equations on the interval 0≤ x < 2 pi.
tan^2 x sec ^2 x+2 sec^2 x - tan^2 x= 2
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