A system is described by ykTxk where xk is an input and yk i

A system is described by yk=T(xk) where xk is an input and yk is the output for that input Which describes a linear circuit:

a. y1+y2=T(x1)+T(x2)

b. y1+y2=T(x1+x2)

c. Both a and b

d. niether a or b

Solution

It is option a because

Let y1=afn(x1)

y2=bfn(x2)

Then y1+y2=afn(x1) +bfn(x2).

But here a=b=1 and fn i.e.. function = T

Therefore y1+y2=T(x1) +T(x2). ....