#### SherlockBenedict

##### Member level 4

Here's the signal

cosω

_{c}t + 0.5 cos ω

_{m}t sinω

_{c}t

Note that: ω

_{c}is the carrier frequency and ω

_{m}is the message/modulating frequency

Please see this carefully and tell me if the signal is AM or FM. The book says that it is FM but I don't get that.

Thanks in advance