# Expand Using Sum/Difference Formulas sin((3pi)/2+x)

Expand Using Sum/Difference Formulas sin((3pi)/2+x)
Use the sum formula for sine to simplify the expression. The formula states that .
Remove parentheses.
Simplify each term.
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the fourth quadrant.
The exact value of is .
Multiply by .
Rewrite as .
Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.
The exact value of is .
Multiply by .
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### Name

Name one billion forty million thirty-five thousand two hundred six

### Interesting facts

• 1040035206 has 64 divisors, whose sum is 2488320000
• The reverse of 1040035206 is 6025300401
• Previous prime number is 359

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 21
• Digital Root 3

### Name

Name one billion eight hundred four million four hundred fifty-seven thousand five hundred thirty-five

### Interesting facts

• 1804457535 has 16 divisors, whose sum is 1959648768
• The reverse of 1804457535 is 5357544081
• Previous prime number is 131

### Basic properties

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

### Name

Name seven hundred sixty-four million six hundred eleven thousand seven hundred twenty-eight

### Interesting facts

• 764611728 has 128 divisors, whose sum is 5209399008
• The reverse of 764611728 is 827116467
• Previous prime number is 107

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 42
• Digital Root 6