##### Using the IMCOS function:

The arguments for the IMCOS function are:

Argument | Required? | Description |
---|---|---|

inumber | Required | A complex number for which you want the cosine. |

The IMCOS function returns the cosine of a complex number.

IMCOS takes 1 required argument and no optional arguments:

IMCOS(inumber)

The arguments for the IMCOS function are:

Argument | Required? | Description |
---|---|---|

inumber | Required | A complex number for which you want the cosine. |

The IMCOS function returns the cosine of a complex number.