Here's the question you clicked on:
Newton2030
Design an operational amplifier circuit with an output voltage of the form v=k(v1-v2-v3) where v1, v2 and v3 are the input voltages into the input terminals 1,2 and 3 respectively.
is this going to be a math abstract and or a physical model
See my response to Odero, which I updated yesterday. You are supposed to look at previous question and see if the answer you require is there. He asked the same question and I answered it.
thank you so much i got the idea from Odero personally. i appreciate.