Design a two-segment sine-wave shaper using a 6.8-kΩ-input resistor, two diodes, and two clamping voltages. The circuit, fed by an 8-V peak-to-peak triangular wave, should limit the amplitude of the output signal via a 0.7-V diode to a value corresponding to that of a sine wave whose zero-crossing slope matches that of the triangle. What are the clamping voltages you have chosen?