5. Given, the input/output relationships of the following systems are: a. y1(t) = cos[-x(t)] b. y2(t) = L exp[x(t + 2)] dt Determine and explain, whether the systems are: i. Linear or non-linear ii....

Extracted text: 5. Given, the input/output relationships of the following systems are: a. y1(t) = cos[-x(t)] b. y2(t) = L exp[x(t + 2)] dt Determine and explain, whether the systems are: i. Linear or non-linear ii. Time-varying or time-invariant iii. Causal or non-causal iv. Invertible or non-invertible v. Memoryless or with memory vi. Stable or unstable