Question: 1 = 3 cos ( 2 1 ) and 2 = 2 cos ( 2 2 + / 2 ) . a . Find 2

1=3cos (21) and 2=2cos (22+/2).
a. Find 2+1.
b. Find 21.
c. Assume that 2=1 and find 2+1.
d. Assume that 2=1 and find 21.

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