Matthew S. answered • 02/27/20
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PhD in Mathematics with extensive experience teaching Calculus
I don't see where n is used... is it supposed to be in the formula somewhere?
Matthew S.
dy/dx = [-sinx * (2 + sinx) - cos^2x]/(2+sinx)^2. Set numerator equal to 0 to find critical values. Since sin^2(x) + cos^2(x) = 1, numerator simplifies to -1 - 2sinx. Critical value when sinx = -1/2. Occurs when x = 7pi/6 + any multiple of 2pi or when x = 11pi/6 + any multiple of 2pi.
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02/28/20
Emanuel F.
Sorry, disregard the last part, that was added by accident02/28/20