Let f(x)=9sinx/2sinx+4cosx Then f'(x)=________ .

Let f(x)=9sinx/2sinx+4cosx.Then 'f(x)= ((2sinx+4cosx)(9cosx)-(9sinx)(2cosx-4sinx))/(2sinx+4cosx)^2. The equation of the tangent
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2. asked by Leslie
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Let f(x)=9sinx/2sinx+4cosxThen f'(x)=________ . The equation of the tangent line to y=f(x) at a= pi/2 can be written in the form
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2. asked by Justin
3. 699 views
Determine the general solution of 8 cos^2x - 4cosx - 1 =0(8cos^2x - 4cosx)/8 =1/8 cos^2x - 4cosx=1/8 cos^2x/cosx =1+4cosx/cosx
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2. asked by Bontle
3. 725 views
Which of the following are trigonometric identities?(Can be more then one answer) tanx cosx cscx = 1 secx-cosx/secs=sin^2x
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2. asked by Jill
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keep in mind answers should be pi radians or if necessary 3 dec.csc^2-2=0 all angles 4cos^2x-4cosx+1=0 all angles and name 8
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2. asked by Amanda
3. 739 views
Complete the table of values that can be used to graph f(x)=−4cosx.(2 points) x f(x)=−4cosx 0 π2 π 3π2 2π
1. 1 answer
2. 109 views
Complete the table of values that can be used to graph f(x)=−4cosx .(2 points) x f(x)=−4cosx 0 π2 π 3π2 2π
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2. 99 views
a. Draw the graphs of y=4cosx and y=2x-x on the same set of axes for -2π<=x<=2π(done) b. Explain why all these solutions of
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2. asked by anon
3. 476 views
(tan^2x-9)(2cosx+1)=0 Find one period4cos^2x-4cosx+1=0 find all angles and name 8 angles 7sin^2x-22sinx+3=0 find all angles and
1. 7 answers
2. asked by Adam
3. 762 views
Let g(x) = sin (cos x^3) Find g ' (x):The choices are a) -3x^2sinx^3cos(cos x^3) b) -3x^2sinx^3sin(cos x^3) c)
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2. asked by Marissa
3. 694 views