Question: Why does abs (pi-4) = 4 - pi ? ( I think it's because pi -4 = -4+pi = -(4 - pi) and then abs (-(4 - pi)) = 4-pi, but I am not too sure). But here is what I really want to know, my book says abs (7 - pi) = 7- pi. If the above is true shouldn't it = pi - 7?© BrainMass Inc. brainmass.com March 22, 2019, 12:51 am ad1c9bdddf
Answer: This is because pi=3.14 approximately, 4-pi>0. But the absolute function returns ...
The expert examines trigonometry proofs.