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Popular Trigonometry >

sin(pi/(11))=sin((xpi)/(11))

  • Pre Algebra
  • Algebra
  • Pre Calculus
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Solution

sin(11π​)=sin(11xπ​)

Solution

x=1+22n,x=10+22n
+1
Degrees
x=57.29577…∘+1260.50714…∘n,x=572.95779…∘+1260.50714…∘n
Solution steps
sin(11π​)=sin(11xπ​)
Switch sidessin(11xπ​)=sin(11π​)
Apply trig inverse properties
sin(11xπ​)=sin(11π​)
General solutions for sin(11xπ​)=sin(11π​)sin(x)=a⇒x=arcsin(a)+2πn,x=π−arcsin(a)+2πn11xπ​=arcsin(sin(11π​))+2πn,11xπ​=π−arcsin(sin(11π​))+2πn
11xπ​=arcsin(sin(11π​))+2πn,11xπ​=π−arcsin(sin(11π​))+2πn
Solve 11xπ​=arcsin(sin(11π​))+2πn:x=1+22n
11xπ​=arcsin(sin(11π​))+2πn
arcsin(sin(11π​))=11π​
arcsin(sin(11π​))
For −2π​≤x≤2π​,arcsin(sin(x))=x
−2π​≤11π​≤2π​=11π​
11xπ​=11π​+2πn
Multiply both sides by 11
11xπ​=11π​+2πn
Multiply both sides by 111111xπ​=11⋅11π​+11⋅2πn
Simplify
1111xπ​=11⋅11π​+11⋅2πn
Simplify 1111xπ​:πx
1111xπ​
Divide the numbers: 1111​=1=πx
Simplify 11⋅11π​+11⋅2πn:π+22πn
11⋅11π​+11⋅2πn
11⋅11π​=π
11⋅11π​
Multiply fractions: a⋅cb​=ca⋅b​=11π11​
Cancel the common factor: 11=π
11⋅2πn=22πn
11⋅2πn
Multiply the numbers: 11⋅2=22=22πn
=π+22πn
πx=π+22πn
πx=π+22πn
πx=π+22πn
Divide both sides by π
πx=π+22πn
Divide both sides by πππx​=ππ​+π22πn​
Simplify
ππx​=ππ​+π22πn​
Simplify ππx​:x
ππx​
Cancel the common factor: π=x
Simplify ππ​+π22πn​:1+22n
ππ​+π22πn​
Apply rule aa​=1ππ​=1=1+π22πn​
Cancel π22πn​:22n
π22πn​
Cancel the common factor: π=22n
=1+22n
x=1+22n
x=1+22n
x=1+22n
Solve 11xπ​=π−arcsin(sin(11π​))+2πn:x=10+22n
11xπ​=π−arcsin(sin(11π​))+2πn
arcsin(sin(11π​))=11π​
arcsin(sin(11π​))
For −2π​≤x≤2π​,arcsin(sin(x))=x
−2π​≤11π​≤2π​=11π​
11xπ​=π−11π​+2πn
Multiply both sides by 11
11xπ​=π−11π​+2πn
Multiply both sides by 111111xπ​=11π−11⋅11π​+11⋅2πn
Simplify
1111xπ​=11π−11⋅11π​+11⋅2πn
Simplify 1111xπ​:πx
1111xπ​
Divide the numbers: 1111​=1=πx
Simplify 11π−11⋅11π​+11⋅2πn:10π+22πn
11π−11⋅11π​+11⋅2πn
11⋅11π​=π
11⋅11π​
Multiply fractions: a⋅cb​=ca⋅b​=11π11​
Cancel the common factor: 11=π
11⋅2πn=22πn
11⋅2πn
Multiply the numbers: 11⋅2=22=22πn
=11π−π+22πn
Add similar elements: 11π−π=10π=10π+22πn
πx=10π+22πn
πx=10π+22πn
πx=10π+22πn
Divide both sides by π
πx=10π+22πn
Divide both sides by πππx​=π10π​+π22πn​
Simplify
ππx​=π10π​+π22πn​
Simplify ππx​:x
ππx​
Cancel the common factor: π=x
Simplify π10π​+π22πn​:10+22n
π10π​+π22πn​
Cancel π10π​:10
π10π​
Cancel the common factor: π=10
=10+π22πn​
Cancel π22πn​:22n
π22πn​
Cancel the common factor: π=22n
=10+22n
x=10+22n
x=10+22n
x=10+22n
x=1+22n,x=10+22n

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Frequently Asked Questions (FAQ)

  • What is the general solution for sin(pi/(11))=sin((xpi)/(11)) ?

    The general solution for sin(pi/(11))=sin((xpi)/(11)) is x=1+22n,x=10+22n
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