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garik1379 [7]
3 years ago
13

Solve 2(x + 1) + 4 = 8 1 6.5 4 3

Mathematics
1 answer:
const2013 [10]3 years ago
5 0
The answer to this equation is 1
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Answer:  see below

<u>Step-by-step explanation:</u>

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Use the quadrangles (angles on the axes) to represent the x-values of the function y = cos x.

Quadrangles are: 0°, 90°, 180°, 270°, 360°  <em>(360° = 0°)</em>

Together, the coordinates will be as follow:

\boxed{\begin{array}{c||c|c||c}\underline{(cos,sin)}&\underline{x=angle}&\underline{y=cosx}&\underline{\quad (x,y)\quad}\\(1,0)&0^o&1&(0^o,1)\\(0,1)&90^o&0&(90^o,0)\\(-1,0)&180^o&-1&(180^o,-1)\\(0,-1)&270^o&0&(270^o,0)\\(1,0)&360^o&1&(360^o,1)\end{array}}

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3 years ago
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170 cm. The unknown length on the left is 21 cm
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