# Expand the Trigonometric Expression cot(-x)cos(-x)+sin(-x)

Expand the Trigonometric Expression cot(-x)cos(-x)+sin(-x)
Simplify each term.
Since is an odd function, rewrite as .
Rewrite in terms of sines and cosines.
Since is an even function, rewrite as .
Multiply .
Combine and .
Raise to the power of .
Raise to the power of .
Use the power rule to combine exponents.
Since is an odd function, rewrite as .
Simplify each term.
Factor out of .
Separate fractions.
Convert from to .
Divide by .
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### Name

Name two hundred fifty million two hundred sixty-three thousand eight hundred thirteen

### Interesting facts

• 250263813 has 8 divisors, whose sum is 335529376
• The reverse of 250263813 is 318362052
• Previous prime number is 181

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 9
• Sum of Digits 30
• Digital Root 3

### Name

Name five hundred seventy-seven million eight hundred ninety-six thousand eight hundred seventy-six

### Interesting facts

• 577896876 has 32 divisors, whose sum is 1926323280
• The reverse of 577896876 is 678698775
• Previous prime number is 3

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 63
• Digital Root 9

### Name

Name one billion nine hundred sixty-eight million nine hundred seventy-two thousand one hundred fifty-nine

### Interesting facts

• 1968972159 has 8 divisors, whose sum is 2659391280
• The reverse of 1968972159 is 9512798691
• Previous prime number is 77

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 10
• Sum of Digits 57
• Digital Root 3