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Solve the equation cos2θ =

  1. Solve the equation cos2θ = 1/2sinθ 0º≤θ≤90º. (Hint: Graph each side of the equation and determine where the graphs
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    2. TeeKay asked by TeeKay
    3. views icon 908 views
  2. If θ represents an angle such that sin2θ = tanθ - cos2θ, then sin θ - cosθ =A. -√2 B. 0 C. 1 D. 2√2 What equation can
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    2. Peter asked by Peter
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  3. Solve 2cos^2θ/2 = cos2θ for 0º≤θ≤360º. (Hint: Graph each side of the equation and find the points of intersection.)A)
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    2. TeeKay asked by TeeKay
    3. views icon 788 views
  4. Solve the following Trigonometric equations, where 0 <= x <= 2πa) sin^2 θ-1 = 0 b) cos2θ=1 c) 4sin^2 θ-3 = 0 d) 2cos^3 - cos
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    2. Muneer asked by Muneer
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  5. Which of the followings is NOT a solution to the trigonometric equation cos4θ+cos2θ=cosθ ?(A) –π/9 (B) π/9 (C) 3π/9 (D)
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    2. Anonymous asked by Anonymous
    3. views icon 249 views
  6. Find the cosine for an angle that has a sine of 340√20 and is in Quadrant II. Use the Pythagorean identity sin2θ+cos2θ=1 and
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  7. What is the tangent for an angle that has a cosine of −17√ and is in Quadrant III? Use the Pythagorean identity
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  8. simplify cos2θ ÷ sinθ + cosθ
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    2. Auwal rabiu dankoli asked by Auwal rabiu dankoli
    3. views icon 386 views
  9. Prove that:cos²Θ - sin²Θ = 2cos²Θ - 1
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    2. CARL asked by CARL
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  10. prove the following2 cosec 2θ cos2θ = cotθ - tanθ
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    2. connor asked by connor
    3. views icon 459 views