Find the Exact Value cos((5pi)/4)

Find the Exact Value cos((5pi)/4)
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 third quadrant.
The exact value of is .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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Name

Name one billion eight hundred ninety-three million two hundred ninety-seven thousand seven hundred two

Interesting facts

  • 1893297702 has 8 divisors, whose sum is 3786595416
  • The reverse of 1893297702 is 2077923981
  • Previous prime number is 3

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 10
  • Sum of Digits 48
  • Digital Root 3

Name

Name one billion seven hundred thirty-five million three hundred seven thousand thirty-eight

Interesting facts

  • 1735307038 has 4 divisors, whose sum is 2602960560
  • The reverse of 1735307038 is 8307035371
  • Previous prime number is 2

Basic properties

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

Name

Name one hundred sixteen million seven hundred two thousand two hundred twenty-two

Interesting facts

  • 116702222 has 64 divisors, whose sum is 251596800
  • The reverse of 116702222 is 222207611
  • Previous prime number is 47

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 23
  • Digital Root 5