Determine whether or not the following pairs are equivalent by constructing truth tables:

[(a'c+bc')(c'd)] and [(a'c'd+bcd)]

[(ab+c)(b'd'+ac')] and [(b'cd'+abc')]

Using DeMorgans Law and Boolean algebra, convert the following expressions into simplest form:

((j'+l)+(ij)')'

((ij+k)(j'+l))'

Please show step-by-step. Thank You!