Question: a. Show that the equation 3 sin 2 x cos 2 x = 2 can be written as 4 sin 2 x = 3.

a. Show that the equation 3 sin2 x – cos2 x = 2 can be written as 4 sin2 x = 3.

b. Hence solve the equation 3 sin2 x – cos2 x = 2 in the interval –180° ≤ x ≤ 180°, giving your answers to 1 decimal place.

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