Perform the following multiplication and write the product in trigonometric form. Express your result in the exact form, if possible; otherwise, use a decimal approximation rounded to the nearest hundredth.. [9(cos (45) + isin(45")|[5(cos(240") + isin(240"))]

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A: We use Trigonometry identities

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A: Given, A parallelogram KLMN with LM = 7.5 cm  and   MN = 7.5 cm  KM  &  LN  are diagonals  ∠KLN…

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A: Given that the complex number is:                                where To find the exponential form…

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A: Write the formula of 2sinAsinB=cos(A-B)-cos(A+B). And solution is given below in the image.

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A: Given- sinπ3·cosπ4-sinπ4·cosπ32 To find- The value of the above expression.

Q: Simplify the following expression. Be sure your work is neat, legible and easy to follow. Circle…

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Q: Simplify the following showing steps:   Cos4(theta)-Sin4(theta)

A: Given,