Verify the Identity sin(a)=tan(a)*cos(a)
Start on the right side.
Write in sines and cosines using the quotient identity.
Cancel the common factor of .
Because the two sides have been shown to be equivalent, the equation is an identity.
is an identity
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Name
| Name | one billion four hundred eighty-three million two hundred eighty thousand three hundred seventy-four |
|---|
Interesting facts
- 1483280374 has 16 divisors, whose sum is 2308369536
- The reverse of 1483280374 is 4730823841
- Previous prime number is 197
Basic properties
- Is Prime? no
- Number parity even
- Number length 10
- Sum of Digits 40
- Digital Root 4
Name
| Name | four hundred thirty-nine million one hundred forty-eight thousand nine hundred sixty |
|---|
Interesting facts
- 439148960 has 256 divisors, whose sum is 4007126376
- The reverse of 439148960 is 069841934
- Previous prime number is 1033
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 44
- Digital Root 8
Name
| Name | three hundred seventeen million nine hundred fifty-nine thousand three hundred eighty-seven |
|---|
Interesting facts
- 317959387 has 4 divisors, whose sum is 325714536
- The reverse of 317959387 is 783959713
- Previous prime number is 41
Basic properties
- Is Prime? no
- Number parity odd
- Number length 9
- Sum of Digits 52
- Digital Root 7