(tan^2x-9)(2cosx+1)=0 Find one period 4cos^2x-4cosx+1=0

(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. 779 views
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
3. 970 views
find all solutions of the equation 4cos^2x-4cosx+1=0
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2. asked by Brielle
3. 1,841 views
f(x)=4sinx/1+cosxfind f'(x) this is what i got and i dunno what i did to get it wrong (4cos(x)+ 4cosx^2-4sin(x)^2)/cosx62
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2. asked by Justin
3. 980 views
Factor4cos^2x+4cosx-1=0
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2. asked by Katie
3. 961 views
Factor4cos^2x+4cosx-1=0
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2. asked by Katie
3. 877 views
Factor each expression:cos^2x- 2cosx+1 4cos^2x-1
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2. asked by 123university
3. 490 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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Use the Quadratic Formula to solve the equation in the interval [0,2pi). Then use a graphing utility to approximate the angle x.
1. 1 answer
2. asked by Poindexter
3. 735 views
What are the steps for solving this?Directions Use the quadratic formula to solve the equation in the interval [0,2PI). Then use
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2. asked by james
3. 1,227 views