Expand Using Sum/Difference Formulas tan(15pi-2t)

Expand Using Sum/Difference Formulas tan(15pi-2t)
Use the difference formula for tangent to simplify the expression. The formula states that .
Remove parentheses.
Simplify the numerator.
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Factor out of .
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Factor out of .
Factor out of .
Factor out of .
Rewrite as .
Subtract full rotations of until the angle is greater than or equal to and less than .
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because tangent is negative in the second quadrant.
The exact value of is .
Multiply by .
Multiply by .
Add and .
Simplify the denominator.
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Subtract full rotations of until the angle is greater than or equal to and less than .
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because tangent is negative in the second quadrant.
The exact value of is .
Multiply by .
Multiply by .
Add and .
Divide by .
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Name

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

Interesting facts

  • 1389044502 has 8 divisors, whose sum is 2315074200
  • The reverse of 1389044502 is 2054409831
  • Previous prime number is 9

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 10
  • Sum of Digits 36
  • Digital Root 9

Name

Name six million eighty-six thousand one hundred ninety

Interesting facts

  • 6086190 has 32 divisors, whose sum is 15935616
  • The reverse of 6086190 is 0916806
  • Previous prime number is 5

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 7
  • Sum of Digits 30
  • Digital Root 3

Name

Name one billion nine hundred twenty-six million two hundred eighty-one thousand four hundred twenty-seven

Interesting facts

  • 1926281427 has 16 divisors, whose sum is 3089775360
  • The reverse of 1926281427 is 7241826291
  • Previous prime number is 7

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 42
  • Digital Root 6