Choose the type of op-amp depicted in the above diagram. Circle the correct answer. (1 point) (Non-inverting Amplifier, Difference Amplifier , Differentiator , Integrator) b) What is V.(t), if V..(t)=t+cos(2000) V is the input to the above op-amp? (Assume C-1uF, R= 20000) (4 points) V.(t)