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YACT: yet another calc thread

Fenixgoon

Fenixgoon

Lifer
having trouble with related rates. i can never do triangle related rates when the rate is in term of the angle (whic is what i happen to have right here).

let alpha = angle BAC in triangle ABC with AB = c and AC =b, where b and c are constants and c > b. side BC changes length as alpha changes. find the rate of change of the area when alpha = pi/3. assume rate of change of alpha is 2

Thanks in advance
 
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