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(a) x 1(t) = e 2tu(t) (b) x 2(t) = ej(2tˇ=4) (c) x 3(t) = cos(t) (d) x 1n = (1 2) nun (e) x 2n = ej( ˇ=2n 8) (f) x 3n = cos(ˇ 4 n) Solution (a) E 1= R 1 0 e 2tdt= 1 4 P 1= 0, because E 1Stack Exchange network consists of 178 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers Visit Stack ExchangeFree math lessons and math homework help from basic math to algebra, geometry and beyond Students, teachers, parents, and everyone can find solutions to their math problems instantly Empatia Typeface W I P On Behance Xe ban cafe dem di