Ackerman's function is defined recursively on the nonnegative integers as follows:a(m, n) = n + 1 if m = 0a(m, n) = a(m-1, 1) if m ≠ 0, n = 0a(m, n) = a(m-1, a(m, n-1)) if m ≠ 0, n ≠ 0Using the above definition, show that a(2,2) equals 7.

An npn transistor is correctly biased and turned on if the a. base is negative. b. collector is negative. c. collector is positive with respect to the emitter and negative with respect to the base. d. collector is the most positive lead followed by the base.