Find the Exact Value cos(135 degrees )

Find the Exact Value cos(135 degrees )
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 one billion eight hundred thirty-seven million six hundred twenty-nine thousand seven hundred eighteen

Interesting facts

  • 1837629718 has 32 divisors, whose sum is 2959441920
  • The reverse of 1837629718 is 8179267381
  • Previous prime number is 29

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 10
  • Sum of Digits 52
  • Digital Root 7

Name

Name six hundred ninety-three million ninety-four thousand one hundred eight

Interesting facts

  • 693094108 has 16 divisors, whose sum is 1782242064
  • The reverse of 693094108 is 801490396
  • Previous prime number is 7

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 40
  • Digital Root 4

Name

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

Interesting facts

  • 1382965643 has 4 divisors, whose sum is 1443094608
  • The reverse of 1382965643 is 3465692831
  • Previous prime number is 23

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 47
  • Digital Root 2