A. tan(x - 2) = tan x
B. cos(x + y) - cos(x - y) = 2 cosxcosy
C. cos(x+y)+ cos(- y) = 2c...
Mathematics, 24.02.2020 19:53 payshencec21
A. tan(x - 2) = tan x
B. cos(x + y) - cos(x - y) = 2 cosxcosy
C. cos(x+y)+ cos(- y) = 2cos x cosy
D. sin(x + y) + sin(x - y) = 2cosx siny
Answers: 3
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Ily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. her work is shown below. 4(x – 1) – x = 3(x + 5) – 11 4x – 4 – x = 3x + 15 – 11 3x – 4 = 3x + 4 how can her partial solution be interpreted?
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