Matemática
123789
8

Dada a função f(x)= 4x²-1, calcule: A) F (3/2)

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[latex]f\left(x \right)=4x^{2}-1\\ \\ \\ f\left(\dfrac{3}{2} \right)=4\cdot \left(\dfrac{3}{2} \right)^{2}-1\\ \\ f\left(\dfrac{3}{2} \right)=4\cdot \dfrac{3^{2}}{2^{2}}-1\\ \\ f\left(\dfrac{3}{2} \right)=\diagup\!\!\!\! 4\cdot \dfrac{9}{\diagup\!\!\!\! 4}-1\\ \\ f\left(\dfrac{3}{2} \right)=9-1\\ \\ f\left(\dfrac{3}{2} \right)=8[/latex]

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