Find the Exact Value cos(-(11pi)/4)
Add full rotations of until the angle is between and .
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 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 fifty-eight million nine hundred ninety-nine thousand four hundred fifty-four |
|---|
Interesting facts
- 658999454 has 8 divisors, whose sum is 991041480
- The reverse of 658999454 is 454999856
- Previous prime number is 389
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 59
- Digital Root 5
Name
| Name | one hundred thirty million one hundred forty-three thousand two hundred ninety-six |
|---|
Interesting facts
- 130143296 has 256 divisors, whose sum is 1569627396
- The reverse of 130143296 is 692341031
- Previous prime number is 17
Basic properties
- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 29
- Digital Root 2
Name
| Name | one billion twelve million five hundred ninety thousand one hundred sixty-five |
|---|
Interesting facts
- 1012590165 has 8 divisors, whose sum is 1081296384
- The reverse of 1012590165 is 5610952101
- Previous prime number is 911
Basic properties
- Is Prime? no
- Number parity odd
- Number length 10
- Sum of Digits 30
- Digital Root 3