Simplify 2cos(theta)^2-1

Simplify 2cos(theta)^2-1
Apply the cosine double-angle identity.
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Name

Name one billion one hundred fifty-two million four hundred ninety-six thousand three hundred eighty

Interesting facts

  • 1152496380 has 32 divisors, whose sum is 3259919520
  • The reverse of 1152496380 is 0836942511
  • Previous prime number is 5

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 10
  • Sum of Digits 39
  • Digital Root 3

Name

Name eight hundred eighty-three million seven hundred fifty-seven thousand three hundred forty-three

Interesting facts

  • 883757343 has 16 divisors, whose sum is 1347768576
  • The reverse of 883757343 is 343757388
  • Previous prime number is 1283

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 9
  • Sum of Digits 48
  • Digital Root 3

Name

Name twenty-one million six hundred twenty-five thousand seven hundred nine

Interesting facts

  • 21625709 has 16 divisors, whose sum is 28512000
  • The reverse of 21625709 is 90752612
  • Previous prime number is 109

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 8
  • Sum of Digits 32
  • Digital Root 5