# Find the Sine of the Angle (5pi)/4

Find the Sine of the Angle (5pi)/4
Take the sine of .
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 third quadrant.
The exact value of is .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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### Name

Name seven hundred fourteen million eight hundred eighteen thousand three hundred eighty

### Interesting facts

• 714818380 has 128 divisors, whose sum is 1908043776
• The reverse of 714818380 is 083818417
• Previous prime number is 283

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 40
• Digital Root 4

### Name

Name one billion seven hundred nineteen million eight hundred thirty-six thousand two hundred twenty-four

### Interesting facts

• 1719836224 has 512 divisors, whose sum is 21517980480
• The reverse of 1719836224 is 4226389171
• Previous prime number is 23

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 43
• Digital Root 7

### Name

Name one billion two hundred ninety-eight million eighty-four thousand eighty-seven

### Interesting facts

• 1298084087 has 4 divisors, whose sum is 1319364216
• The reverse of 1298084087 is 7804808921
• Previous prime number is 61

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 10
• Sum of Digits 47
• Digital Root 2