Given that 0 < x < 2, which of the following gives all solutions to the equation cos (2x)cos x + sin (2x)sin x = -- -√3? Select the correct answer below: ΟΟΟΟ X = 5π X = 5 and 7 X = 4 and 5 X = 4л 5л 10л 11л 16л 17л 9'92 " 9 9 9 9

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A: Note:-Since you asked multiple questions, according to our policy we can answer only first question…

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A: cos (2x) - cos x = 0 cos(2x) = cos x  x = 2πn and n∈z

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