Solve for ? cos(theta)+1=0

Solve for ? cos(theta)+1=0
Subtract from both sides of the equation.
Take the inverse cosine of both sides of the equation to extract from inside the cosine.
The exact value of is .
The cosine function is negative in the second and third quadrants. To find the second solution, subtract the reference angle from to find the solution in the third quadrant.
Subtract from .
Find the period.
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The period of the function can be calculated using .
Replace with in the formula for period.
Solve the equation.
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The absolute value is the distance between a number and zero. The distance between and is .
Divide by .
The period of the function is so values will repeat every radians in both directions.
, for any integer
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Name

Name five hundred thirty-seven million four hundred nine thousand four hundred seventy-four

Interesting facts

  • 537409474 has 16 divisors, whose sum is 975466368
  • The reverse of 537409474 is 474904735
  • Previous prime number is 7

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 43
  • Digital Root 7

Name

Name fifty-four million four hundred thirty-seven thousand one hundred twenty-eight

Interesting facts

  • 54437128 has 64 divisors, whose sum is 204780960
  • The reverse of 54437128 is 82173445
  • Previous prime number is 19

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 8
  • Sum of Digits 34
  • Digital Root 7

Name

Name two billion one hundred forty-three million seven hundred thirteen thousand six hundred fifty-nine

Interesting facts

  • 2143713659 has 16 divisors, whose sum is 2259744480
  • The reverse of 2143713659 is 9563173412
  • Previous prime number is 683

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 41
  • Digital Root 5