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4cos^2x-5sinxcosx-6=0 find the x :(

  1. 4cos^2x-5sinxcosx-6=0find the x :( please
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    2. cassy asked by cassy
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  2. Sketch the region enclosed by the curves given below. Decide whether to integrate with respect to x or y. Then find the area of
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    2. Kevin asked by Kevin
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  3. a) Express f(theta) = 4cos theta - 6sin theta in the form r cos(theta + alpha)b) Hence find the general solution of the equation
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    2. Becky asked by Becky
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  4. Write an equation for simple harmonic motion, given that the amplitude equals 4 inches and the period equals 2 seconds and the
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    2. Kayla asked by Kayla
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  5. The graph of the parametric equationsx=cos(t) y=sin(t) meets the graph of the parametric equations x=2+4cos(s) y=3+4sin(s) at
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    2. Katie asked by Katie
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  6. What am I doing wrong?Equation: sin2x = 2cos2x Answers: 90 and 270 .... My Work: 2sin(x)cos(x) = 2cos(2x) sin(x) cos(x) =
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    2. Anonymous asked by Anonymous
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  7. Which equation would the table of values represent? 0, 3 pi over 2, 3 pi, 9 pi over 2, 6 pi. 0, 4, 0, -4, 0 (1 point) Responses
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  8. Let f(x)=4cos^5x.Find f'(x)
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    2. sandy asked by sandy
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  9. Find the amplitude y=4cos(3x-pi)
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  10. Find the area under y=4sin(x) and above y=4cos(x) for π2≤x≤3π2.
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    2. Destiny Padgett asked by Destiny Padgett
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