Question

g(x) = 2cos(x), qual o valor de f(π/6)?​

Answer 1

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$\sf g(x)=2cos(x)\\\sf g\left(\dfrac{\pi}{6}\right)=2\cdot cos\left(\dfrac{\pi}{6}\right)\\\sf g\left(\dfrac{\pi}{6}\right)=\diagup\!\!\!2\cdot\dfrac{\sqrt{3}}{\diagup\!\!\!2}\\\huge\boxed{\boxed{\boxed{\boxed{\sf g\left(\dfrac{\pi}{6}\right)=\sqrt{3}}}}}$