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Question: please show the complete step for question 69...

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65-72 Find all values of x in the interval [0, 2π] that satisfy the equation. 65. 2 cos x-1 =0 67. 2 sin:r = 1 69. sin 2rs r 71. sin r tan r 66, 3 cotx= 1 68.tan1 70, 2 cos r + sin 2r=0 72. 2 cos 2r cos r

Please show the complete step for question 69

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