Answers edited by Jothi S.
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What are the local extrema, if any, of #f (x) = x^3  6x^2  15x + 11 #?

How do you solve #x^2>=36# using a sign chart?

How do you evaluate #sin ((7pi)/12)#?

Show that integration of cos^4 x sinĀ² x dx = 1/16 [ x  (sin4x)/4 + (sin^3 2x)/3 ] +c ?

How do you find the critical numbers for #cos (x/(x^2+1))# to determine the maximum and minimum?

How do you solve #3cscx+5=0#?

How do you differentiate #g(x) = (x^2+1) (x^23x)# using the product rule?

How do you solve the following equation # 2 cos x  1=0# in the interval [0, 2pi]?