Data on sunspots shows that the sunspot number waxes and wanes with a more or less regular solar cycle which repeats itself every 11 years. If there was a minimum in the sunspot number in 1744 of about 10 and a maximum of about 90 in 1750, use the model n(t)  = a. sin( b t + c) + d with appropriate values of a, b, c and d to predict the sunspot number n during the years 1752 and 1758

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A: The given expression is sincos-1-12.

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A:

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A:

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A:

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A: See in the next step

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