MHF 4U1- Trigonometric Functions - Communicate Using Good Mathematical Form - Mathematics Assignment Help

Assignment Task:

Task:

Please show all work and communicate using good mathematical form.
3 communication marks will be allocated for proper format and for proper submission of the assignment electronically.
NOTE: You may not copy answers from one another; to do so would constitute academic dishonesty. Please sign here to attest that the work submitted is your academically.____________
Part A: Application
1. An oscilloscope hooked up to an alternating current (AC) circuit shows a sine curve. The records the current in amperes (A) on the vertical axis and the time in seconds on the horizontal axis. At t = 1 120 s, the current reads it first maximum value of 9A. At t =1 40s, the

current reads it first minimum value of -3A.
a) Determine the equation of the function that expresses the current in terms of time in the form of f(x) = a cos[k(x − d)] + c.

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