Find the Exact Value cos(495)

Find the Exact Value cos(495)
Remove full rotations of ° until the angle is between ° and °.
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the second quadrant.
The exact value of is .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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Name

Name two billion twelve million two hundred eighty-four thousand three hundred ninety

Interesting facts

  • 2012284390 has 16 divisors, whose sum is 3111572880
  • The reverse of 2012284390 is 0934822102
  • Previous prime number is 53

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 10
  • Sum of Digits 31
  • Digital Root 4

Name

Name one billion three hundred sixty-six million nine hundred fifty thousand five hundred eighty-two

Interesting facts

  • 1366950582 has 16 divisors, whose sum is 2140369632
  • The reverse of 1366950582 is 2850596631
  • Previous prime number is 23

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 10
  • Sum of Digits 45
  • Digital Root 9

Name

Name one billion two hundred fifty-six million nine hundred sixty-five thousand one hundred two

Interesting facts

  • 1256965102 has 16 divisors, whose sum is 1986566400
  • The reverse of 1256965102 is 2015696521
  • Previous prime number is 1091

Basic properties

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