# Determine if True cos((3pi)/8)=cos(1/2)cos((3pi)/2)

Determine if True cos((3pi)/8)=cos(1/2)cos((3pi)/2)
The left side does not equal to the right side , which means that the given statement is false.
False
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### Name

Name one hundred twenty-eight million one hundred twenty-four thousand six hundred seventy

### Interesting facts

• 128124670 has 16 divisors, whose sum is 230796720
• The reverse of 128124670 is 076421821
• Previous prime number is 1609

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 31
• Digital Root 4

### Name

Name one billion eight hundred thirty-one million eight hundred twenty-six thousand five hundred ninety-six

### Interesting facts

• 1831826596 has 8 divisors, whose sum is 4121609850
• The reverse of 1831826596 is 6956281381
• Previous prime number is 2

### Basic properties

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

### Name

Name two hundred ninety-four million five hundred sixty-one thousand seven hundred forty-eight

### Interesting facts

• 294561748 has 64 divisors, whose sum is 737190720
• The reverse of 294561748 is 847165492
• Previous prime number is 1433

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 46
• Digital Root 1