Remember: The formula for the period only cares about the coefficient, $$ \color{red}{a} $$ in front of the x. The formula for the period is the coefficient is 8 : $$ -7 cos (\color{red}{8}x) $$. $ period = \frac{2 \pi}{ \color{red}{a}} \\ period = \frac{2 \pi}{ 8} \\ period = \frac{ \pi}{4} $.
Monarch V7 Professional Edition's list price is $765 for a single user and $2,365 for a network of four users. A single user upgrade from V6 Standard Edition to V7 Standard Edition is $169. A single user upgrade from V6 Standard Edition to V7 Pro Edition is $279. A single user upgrade from V6 Pro Edition to V7 Pro Edition is $169. Monarch is available through leading resellers and by calling Datawatch directly at 800-445-3311.
How much does ADT Pulse Cost? There are three levels of ADT Pulse monitoring. The monthly cost is $49.99 for basic, $53.99 for two way voice, and $59.99 a month for advanced (Cameras, lights, thermostats, and door locks). The upfront costs start between $99 and $299 but can increase if you add more protection, home automation devices, or cameras.