If X(z) is the z-transform of the signal x(n) then what is the z-transform of a^n x(n) ?Group of answer choicesnoneX(az)X(a^-1z)X(az^-1)

If X(z) is the z-transform of the signal x(n), then what is the z-transform of the signal x(-n)?Group of answer choicesX(-z)X(z^-1)X^-1(z)NoneNext

With reference to Time shifting property of z-transform, if X(z) is the z-transform of x(n) then what is the z-transform of x(n-k)? Group of answer choicesx(z+k)Zk X(z)x(z-k)Z-k X(z)

Which of the following is the inverse Z - transform of 𝑧𝑧−𝑎(∣𝑧∣>𝑎)z−az​ (∣z∣>a) ?a)𝑎−𝑛a −n b)ac)𝑎𝑛a n d)1𝑎a1​

What is the z-transform of the signal x(n)=[3(2n)−4(3n)]u(n)𝑥(𝑛)=[3(2𝑛)−4(3𝑛)]𝑢(𝑛) ?Select one:a.3(1+2z−1)−4(1+3z−1)3(1+2𝑧−1)−4(1+3𝑧−1)b.3(1−2z−1)−4(1−3z−1)3(1−2𝑧−1)−4(1−3𝑧−1)c.3(1−2z)−4(1−3z)3(1−2𝑧)−4(1−3𝑧)d.None of the options

What is the z-transform of the signal x(n)=sin(jω0n)u(n)?a) z−1sinω01+2z−1cosω0+z−2b) z−1sinω01−2z−1cosω0−z−2c) z−1cosω01−2z−1cosω0+z−2d) z−1sinω01−2z−1cosω0+z−2