Hi i can't solve this problem P is a variable point on the semicircumference of radius 2 and H is its projection on the diameter AB A) Study the function f(x) = PH +HB angle x=PAH answer: thanks you
Last edited by pauline; October 25th 2010 at 01:25 PM.
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I bet it is. What else can you tell us?
sorry now it's clear
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