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wtf is phytag?

A lamp 6m directly above a straight path. A man 2m tall walks along the path away from the light at a constant speed of 1 m/s. At what speed is the end of his shadow moving along the path? At what speed is the length of his shadow increasing? from fitzpatrick; ex 25 a) question 2

mainly from exercise 25 a) (rates), 24 c) (parametrics) & 28 c) (perms and combs)

lol yea, but its also called im semi rural... find me a tutor :)

i really really need help with alot of the questions :(