Verify the Identity (csc(x))/(sec(x))+(cos(x))/(sin(x))=2cot(x)
Start on the left side.
Apply the reciprocal identity to .
Apply the reciprocal identity to .
Simplify each term.
Multiply the numerator by the reciprocal of the denominator.
Combine and .
Combine the numerators over the common denominator.
Add and .
Now consider the right side of the equation.
Write in sines and cosines using the quotient identity.
Combine and .
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 forty-four million nine hundred seventy-two thousand six hundred forty-two |
|---|
Interesting facts
- 1444972642 has 8 divisors, whose sum is 2171604816
- The reverse of 1444972642 is 2462794441
- Previous prime number is 523
Basic properties
- Is Prime? no
- Number parity even
- Number length 10
- Sum of Digits 43
- Digital Root 7
Name
| Name | sixty-six million five hundred fifty-four thousand six hundred twenty-one |
|---|
Interesting facts
- 66554621 has 4 divisors, whose sum is 76062432
- The reverse of 66554621 is 12645566
- Previous prime number is 7
Basic properties
- Is Prime? no
- Number parity odd
- Number length 8
- Sum of Digits 35
- Digital Root 8
Name
| Name | one billion five hundred sixty-three million five hundred four thousand fifty-one |
|---|
Interesting facts
- 1563504051 has 4 divisors, whose sum is 1586163600
- The reverse of 1563504051 is 1504053651
- Previous prime number is 69
Basic properties
- Is Prime? no
- Number parity odd
- Number length 10
- Sum of Digits 30
- Digital Root 3