POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDG

POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME
FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF
THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE
INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE
THE VALUES OF tPLH and tPHL?

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