Find the real zeros of the trigonometric function on the interval \( 0 \leq \theta<2 \pi \). \( f f(x)=6 \boldsymbol{\operatorname { s i n }}(2 x)-6 \boldsymbol{\operatorname { s i n }} x \) The real zeros are (Use a comma to separate answers as needed. Type exact answers, using \( \pi \) as needed. Use integers or fractions for any numbers in the expressions.)
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To find the real zeros of the function \( f(x) = 6 \sin(2x) - 6 \sin(x) \), we can start by setting this equal to zero: \[ 6 \sin(2x) - 6 \sin(x) = 0 \] Dividing by 6 gives us: \[ \sin(2x) - \sin(x) = 0 \] Using the double angle identity, \( \sin(2x) = 2 \sin(x) \cos(x) \), we can rewrite the equation: \[ 2 \sin(x) \cos(x) - \sin(x) = 0 \] Factoring out \( \sin(x) \): \[ \sin(x)(2 \cos(x) - 1) = 0 \] Setting each factor to zero gives us two cases: 1. \( \sin(x) = 0 \) 2. \( 2 \cos(x) - 1 = 0 \) For \( \sin(x) = 0 \), we find: \[ x = 0, \pi, 2\pi \] However, since we are looking in the interval \( 0 \leq x < 2\pi \), the relevant solutions are: \[ x = 0, \pi \] For \( 2 \cos(x) - 1 = 0 \), we solve for \( \cos(x) = \frac{1}{2} \): \[ x = \frac{\pi}{3}, \frac{5\pi}{3} \] Combining the results, the real zeros of the function \( f(x) \) in the interval \( 0 \leq x < 2\pi \) are: \[ 0, \pi, \frac{\pi}{3}, \frac{5\pi}{3} \]