Learn how to write the sum from a geometric series. A series is the sum of the terms of a sequence. A geometric series is the sum of the terms of a geometric sequence. The formula for the sum of n ...

👉 Learn how to evaluate the cosine of an angle in radians using the sum/difference formulas. To do this, we first express the given angle as a sum or a difference of two (easy to evaluate) angles, ...

Abstract: Currently, the trend of group use of unmanned aerial vehicles (UAVs) is actively developing. This allows to significantly increase their efficiency due to coverage of larger areas, ...

Abstract: Reconfigurable arrays enable flexible utilization of system resources and thus become a key technology in modern radar and communication systems. Once the array is reconfigured, its steering ...