Consider the function \( g(x)=\frac{4-8 \sin ^{2} x}{3} \) Calculate the maximum value of \( g \) Write down the smallest possible value of \( x \) for which will have a maximum value in the intelval \( x \in[0 ; 360] \)
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To find the maximum value of the function \( g(x)=\frac{4-8 \sin^{2} x}{3} \), we can first analyze the expression inside \( g(x) \). The term \( \sin^{2} x \) varies between 0 and 1. When \( \sin^{2} x = 0 \) (which occurs at \( x = 0^\circ \) and \( x = 180^\circ \)), we have: \[ g(x) = \frac{4 - 8 \cdot 0}{3} = \frac{4}{3}. \] When \( \sin^{2} x = 1 \) (which occurs at \( x = 90^\circ \) and \( x = 270^\circ \)), we have: \[ g(x) = \frac{4 - 8 \cdot 1}{3} = \frac{-4}{3}. \] Thus, the maximum value of \( g(x) \) is \( \frac{4}{3} \). The smallest possible value of \( x \) in the interval \( [0, 360] \) for which \( g(x) \) reaches its maximum value is \( x = 0^\circ \).