Find the Exact Value sin((4pi)/3)

Find the Exact Value sin((4pi)/3)
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine 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 six hundred sixty-nine million one hundred fifteen thousand one hundred thirty

Interesting facts

  • 669115130 has 16 divisors, whose sum is 1204817544
  • The reverse of 669115130 is 031511966
  • Previous prime number is 3461

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 32
  • Digital Root 5

Name

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

Interesting facts

  • 1493944652 has 16 divisors, whose sum is 3371065560
  • The reverse of 1493944652 is 2564493941
  • Previous prime number is 347

Basic properties

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

Name

Name one billion four hundred forty-nine million three hundred eighty-five thousand nine hundred eighteen

Interesting facts

  • 1449385918 has 8 divisors, whose sum is 2177848512
  • The reverse of 1449385918 is 8195839441
  • Previous prime number is 577

Basic properties

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