# Expand Using Sum/Difference Formulas cos(pi/3+B)

Expand Using Sum/Difference Formulas cos(pi/3+B)
Use the sum formula for cosine to simplify the expression. The formula states that .
Remove parentheses.
Simplify each term.
The exact value of is .
Combine and .
The exact value of is .
Combine and .
Combine the numerators over the common denominator.
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### Name

Name one billion seven hundred twenty-two million nine hundred fifty-three thousand one hundred sixty-two

### Interesting facts

• 1722953162 has 64 divisors, whose sum is 3266853120
• The reverse of 1722953162 is 2613592271
• Previous prime number is 107

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 38
• Digital Root 2

### Name

Name seven hundred fifty-five million nine hundred ninety-eight thousand four hundred sixty-seven

### Interesting facts

• 755998467 has 32 divisors, whose sum is 1214400000
• The reverse of 755998467 is 764899557
• Previous prime number is 1517

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 9
• Sum of Digits 60
• Digital Root 6

### Name

Name eight hundred eighty-eight million five hundred eighty-five thousand nine hundred ten

### Interesting facts

• 888585910 has 16 divisors, whose sum is 1668996576
• The reverse of 888585910 is 019585888
• Previous prime number is 23

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 52
• Digital Root 7