Question: Simplify the expression ( 7 4 i ) e ( 7 + 4 i ) x + ( 7 + 4 i ) e (

Simplify the expression (74i)e(7+4i)x+(7+4i)e(74i)x so it involves trig functions and exponentials but no imaginary numbers. (This problem is a sub-skill of a later, more complex problem.)

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