Question: Write the sum as a product: cos(18.7v) cos(11.7v) = Note: coefficients inside of the trigonometric functions should be entered as (simplified) decimal value do

Write the sum as a product: cos(18.7v) cos(11.7v) = Note: coefficients inside of the trigonometric functions should be entered as (simplified) decimal value do not enter fractions inside of the trig functions...else they will be marked incorrect by the system. F 11 example, if your answer is, enter 5.5 instead of 11/2.

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