Math  Trigonometry
posted by Anonymous .
Sketch the curve represented by the parametric equations x=3cos¦È and y=3sin¦È for 0 ¡Ü ¦È ¡Ü ¦Ð?
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Calculus Question! ASAP!
Hello! I have this problem: x(dx)/sqrt(9x^2) I was wondering why I can't use trig substitution and substitute sqrt(9x^2) for sqrt(1sec^2) and having: integral x = 3sin(theta) dx = 3cos(theta)d(theata) integral 3sin(theta)(3cos(theta))/3cos(theta) …