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Solve the following: a) 2cos2(4x)+5cos(4x)+2=0 b) arctan(3x+3)= π/4 c) 21+sin2 (x) = 4sin(x) d) ln(x +...

Solve the following:

a) 2cos2(4x)+5cos(4x)+2=0

b) arctan(3x+3)= π/4

c) 21+sin2 (x) = 4sin(x)

d) ln(x + 3) = ln(x) + ln(3).

Math   Precalculus   
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