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What is the image of a circle with equation (x+2)2+(y2)2=1(x + 2)^2 + (y - 2)^2=1 when it is rotated through π6\frac{\pi}{6} about the origin?\newline(a) (x+(3+1))2+(y(31))2=1(x + (\sqrt{3} + 1))^2 + (y - ( \sqrt{3} - 1))^2 = 1\newline(b) (x(3+1))2+(y+(31))2=1(x - ( \sqrt{3} + 1))^2 + (y + (\sqrt{3} - 1))^2 = 1\newline(c) (x+(31))2+(y(3+1))2=1(x + (\sqrt{3} - 1))^2 + (y - ( \sqrt{3} + 1))^2 = 1\newline(d) (x(31))2+(y+(3+1))2=1(x - ( \sqrt{3} - 1))^2 + (y + (\sqrt{3} + 1))^2 = 1

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Q. What is the image of a circle with equation (x+2)2+(y2)2=1(x + 2)^2 + (y - 2)^2=1 when it is rotated through π6\frac{\pi}{6} about the origin?\newline(a) (x+(3+1))2+(y(31))2=1(x + (\sqrt{3} + 1))^2 + (y - ( \sqrt{3} - 1))^2 = 1\newline(b) (x(3+1))2+(y+(31))2=1(x - ( \sqrt{3} + 1))^2 + (y + (\sqrt{3} - 1))^2 = 1\newline(c) (x+(31))2+(y(3+1))2=1(x + (\sqrt{3} - 1))^2 + (y - ( \sqrt{3} + 1))^2 = 1\newline(d) (x(31))2+(y+(3+1))2=1(x - ( \sqrt{3} - 1))^2 + (y + (\sqrt{3} + 1))^2 = 1
  1. Identify Center and Radius: Identify the center and radius of the original circle. The equation (x+2)2+(y2)2=1(x + 2)^2 + (y - 2)^2 = 1 represents a circle with center (2,2)(-2, 2) and radius 11.
  2. Calculate New Coordinates: Calculate the new coordinates of the center after rotation by π/6\pi/6. Rotation formula: x=xcos(θ)ysin(θ)x' = x \cos(\theta) - y \sin(\theta), y=xsin(θ)+ycos(θ)y' = x \sin(\theta) + y \cos(\theta). Here, θ=π/6\theta = \pi/6, cos(π/6)=3/2\cos(\pi/6) = \sqrt{3}/2, sin(π/6)=1/2\sin(\pi/6) = 1/2. Substituting x=2x = -2, y=2y = 2: \newlinex=(2)(3/2)(2)(1/2)=31x' = (-2)(\sqrt{3}/2) - (2)(1/2) = -\sqrt{3} - 1, \newliney=(2)(1/2)+(2)(3/2)=1+3y' = (-2)(1/2) + (2)(\sqrt{3}/2) = -1 + \sqrt{3}.
  3. Write Rotated Circle Equation: Write the equation of the rotated circle. The new center is (31,31)(-\sqrt{3} - 1, \sqrt{3} - 1) and the radius remains 11. The equation becomes:\newline(x+3+1)2+(y(31))2=1(x + \sqrt{3} + 1)^2 + (y - (\sqrt{3} - 1))^2 = 1.

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