1. Find an equation of a line (in standard form) perpendicular to 2x-y = 1 and passes through (0, 2). 2. Solve the systems of lincar equations using the given methods. a. 2x - y= 5: Substitution r-2y = 4 b. 8x – 4y = 10; Elimination 6r– 2y = 1

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A: Given,Xk=1+sin2πNk+5 cos2πNk+cos4πNk+π3To find: Discrete-time Fourier Series coefficients

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A: Solution: Given that, A=[ 1 4 7 ] and B= [4 2 0].

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