G"1.6. for a periodic continuous-time signal, parseval’s relationship states that 1 t ∫ || t = ∑ | | +[infinity] 2 =−[infinity] . if the period of is t = 2 and there are two non-zero fourier series coefficients −1 = −1 and = 2 , then ∫ || 1 −1 = ( ) a. 1 b. 3 c.5 d. 10"

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .