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Which statement bests reflects the definition of a policy?

An input signal x(t) = e-4tu(t) goes through a LTI system with impulse response h(t) = u(t+1) and generates output signal y(t), fill in the values for y(t), round to three decimal places. y(-2) = [a] y(-1) = [b] y(0) = [c] y(∞) = [d]

What is x[n]*δ[n] (convolution)?

Which of the following is the equation to calculate the Fourier series coefficient ak from a periodic signal x[n] with period N?

For a periodic input signal x(t), the fundamental frequency is ω0 = π/4, what is the fundamental period?

Consider an LTI system whose response to the input signal x(t) is the signal y(t) as illustrated below. Given an input x1(t) to the above LTI system,   Which of the following is correct regarding the input x1(t) and output y1(t)?

This OSHA mandate outlines practices and recommends equipment modification  to prevent repetitive or stress injury in the lab. 

For a periodic input signal x(t), the fundamental frequency is ω0 = π/4, what is the fundamental period?

Consider an LTI system whose response to the input signal x(t) is the signal y(t) as illustrated below. Given an input x1(t) to the above LTI system,   Which system properties are used to get system output y1(t) from system input x1(t)?

Is the discrete-time signal x[n] = sin(π*n/3) periodic? If yes, what is the fundamental period?