Solving trigonometric equations using double-angle identities

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  1. Utilizing "Double-Angle Identities" to solve:

    1. cos2x=2sin2x\cos 2x = 2 \sin^2x
      0x0 \leq x < 2π2\pi
    2. tanxcotx=2\tan x - \cot x = 2
      0x0 \leq x < 2π2\pi