Expand Using Sum/Difference Formulas cos(45)

Expand Using Sum/Difference Formulas cos(45)
The angle is an angle where the values of the six trigonometric functions are known. Because this is the case, add to keep the value the same.
Use the sum formula for cosine to simplify the expression. The formula states that .
The exact value of is .
The exact value of is .
The exact value of is .
The exact value of is .
Simplify each term.
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Multiply by .
Multiply by .
Add and .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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Name

Name two billion thirty-six million one hundred ninety-four thousand three hundred twenty-seven

Interesting facts

  • 2036194327 has 4 divisors, whose sum is 2037461440
  • The reverse of 2036194327 is 7234916302
  • Previous prime number is 1609

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 37
  • Digital Root 1

Name

Name four hundred sixty-eight million forty-nine thousand twenty

Interesting facts

  • 468049020 has 16 divisors, whose sum is 1123317792
  • The reverse of 468049020 is 020940864
  • Previous prime number is 15

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 33
  • Digital Root 6

Name

Name four hundred seventy-six million three hundred thirty-three thousand two hundred seventy-four

Interesting facts

  • 476333274 has 16 divisors, whose sum is 974822112
  • The reverse of 476333274 is 472333674
  • Previous prime number is 43

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 39
  • Digital Root 3