Question: 4. Solve cosx = cos 2x for the interval x E [0, 3x]. vvVV 5. Solve 6cos2x - 5sinx - 2 = 0 on the

4. Solve cosx = cos 2x for the interval x E [0, 3x]. vvVV 5. Solve 6cos2x - 5sinx - 2 = 0 on the interval x E [0,2n]VV VVPart C - Communication [COMM - 20 marks] **Show ALL of your work and fully LABEL your graphs. 1. Determine an equation in factored form for the polynomial function represented by the graph. V V 2 X 62. Sketch a graph of y = cos x and y = - cos(2x - It) + 1 for 1 full cycle. vVV VVV

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