SOLUTION: Good morning, can somebody help me factorize and solve step by step following equation?:
sin(2x)cos(pi/3) - cos(2x)sin(pi/3) + 3^(1/2)(cos(2x)cos(pi/3) + sin(2x)sin(pi/3))-3^(1/2)
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-> SOLUTION: Good morning, can somebody help me factorize and solve step by step following equation?:
sin(2x)cos(pi/3) - cos(2x)sin(pi/3) + 3^(1/2)(cos(2x)cos(pi/3) + sin(2x)sin(pi/3))-3^(1/2)
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Question 1062122: Good morning, can somebody help me factorize and solve step by step following equation?:
sin(2x)cos(pi/3) - cos(2x)sin(pi/3) + 3^(1/2)(cos(2x)cos(pi/3) + sin(2x)sin(pi/3))-3^(1/2) = 0
Thank you very much RB Found 2 solutions by rothauserc, Edwin McCravy:Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! -sqrt(3) - 1/2 sqrt(3) cos(2 x) + 1/2 sin(2 x) + sqrt(3) (1/2 cos(2 x) + 1/2 sqrt(3) sin(2 x)) = 0
:
Simplify and substitute y = 1/2 sin(2 x)
:
-sqrt(3) - 1/2 sqrt(3) cos(2 x) + 1/2 sin(2 x) + sqrt(3) (1/2 cos(2 x) + 1/2 sqrt(3) sin(2 x)) = (4 sin(2 x))/2 - sqrt(3) = 4y - sqrt(3) = 0
:
4y - sqrt(3) = 0
:
Add sqrt(3) to both sides
:
4y = sqrt(3)
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Divide both sides by 4
:
y = sqrt(3)/4
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Substitute back for y = 1/2 sin(2 x)
:
1/2 sin(2x) = sqrt(3)/4
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Multiply both sides by 2
:
sin(2x) = sqrt(3)/2
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Take the inverse sine of both sides
:
2x = (2π)/3 + 2πn1 for n1 in Z
or 2x = π/3 + 2πn2 for n2 in Z
:
Simplify each equation
:
Divide both sides by 2
:
x = π/3 + πn1 for n1 in Z
or 2x = π/3 + 2πn2 for n2 in Z
:
Divide both sides by 2
:
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x = π/3 + πn1 for n1 in Z
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or x = π/6 + πn2 for n2 in Z
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