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## Define the mathematical function sign(x) and sin(x) with an example. - Database management system

Presidency University, Bangalore- Database management systemBy:Aparna-Dasgupta

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## Answers

## SIGN(X)

This function returns the sign of X (negative, zero, or positive) as -1, 0, or 1.

SQL>SELECT SIGN(-4.65);

+---------------------------------------------------------+

| SIGN(-4.65) |

+---------------------------------------------------------+

| -1

## SIN(X)

This function returns the sine of X. Consider the following example −

SQL>SELECT SIN(90);+---------------------------------------------------------+

| SIN(90) |

+---------------------------------------------------------+

| 0.893997 |

Fututron

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