Investigate limℎ→01−cosℎ/ℎ2 numerically (and graphically if you have a graphing utility). Then prove that the limit is equal to 12.

Answer 1

Use l'Hopital rule twice, after first use still wind up with 0/0

graphically have numerator and denominator =0 original function and first slope test

second use has limit =1/2, which is the slope of slope comparison