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Popular Trigonometry >

0=1-cos(2pix)

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Solution

0=1−cos(2πx)

Solution

x=n
+1
Degrees
x=0∘
Solution steps
0=1−cos(2πx)
Switch sides1−cos(2πx)=0
Move 1to the right side
1−cos(2πx)=0
Subtract 1 from both sides1−cos(2πx)−1=0−1
Simplify−cos(2πx)=−1
−cos(2πx)=−1
Divide both sides by −1
−cos(2πx)=−1
Divide both sides by −1−1−cos(2πx)​=−1−1​
Simplifycos(2πx)=1
cos(2πx)=1
General solutions for cos(2πx)=1
cos(x) periodicity table with 2πn cycle:
x06π​4π​3π​2π​32π​43π​65π​​cos(x)123​​22​​21​0−21​−22​​−23​​​xπ67π​45π​34π​23π​35π​47π​611π​​cos(x)−1−23​​−22​​−21​021​22​​23​​​​
2πx=0+2πn
2πx=0+2πn
Solve 2πx=0+2πn:x=n
2πx=0+2πn
0+2πn=2πn2πx=2πn
Divide both sides by 2π
2πx=2πn
Divide both sides by 2π2π2πx​=2π2πn​
Simplify
2π2πx​=2π2πn​
Simplify 2π2πx​:x
2π2πx​
Divide the numbers: 22​=1=ππx​
Cancel the common factor: π=x
Simplify 2π2πn​:n
2π2πn​
Divide the numbers: 22​=1=ππn​
Cancel the common factor: π=n
x=n
x=n
x=n
x=n

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Popular Examples

tan(θ)= 12/5 ,0<= θ<= pi/2sin(x)=(420)/(2.3)cos(x)=(sqrt(14))/(14)solvefor x,5=4cos(3x)+9sin^2(x)cos(x)+sin(x)=0

Frequently Asked Questions (FAQ)

  • What is the general solution for 0=1-cos(2pix) ?

    The general solution for 0=1-cos(2pix) is x=n
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