# Expand Using Sum/Difference Formulas sin(pi/4+x)

Expand Using Sum/Difference Formulas sin(pi/4+x)
Use the sum formula for sine 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 .
Simplify.
Combine the numerators over the common denominator.
Factor out of .
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### Name

Name one billion six hundred ninety-seven million ninety-one thousand seven hundred ninety

### Interesting facts

• 1697091790 has 16 divisors, whose sum is 3066656112
• The reverse of 1697091790 is 0971907961
• Previous prime number is 257

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 49
• Digital Root 4

### Name

Name one billion one hundred thirty-three million seven hundred two thousand two hundred forty-six

### Interesting facts

• 1133702246 has 16 divisors, whose sum is 1775340288
• The reverse of 1133702246 is 6422073311
• Previous prime number is 2711

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 29
• Digital Root 2

### Name

Name forty million eight thousand three hundred eighty-one

### Interesting facts

• 40008381 has 8 divisors, whose sum is 60965184
• The reverse of 40008381 is 18380004
• Previous prime number is 7

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 8
• Sum of Digits 24
• Digital Root 6