duvida de matematica,me ajudem por favor?

Comments

• zeindelf

  June 2021

  a) f(3/4)

  f(3/4) = 2x² - 3

  f(3/4) = 2 . (2/3)² - 3

  f(3/4) = 2 . 4/9 - 3

  f(3/4) = 8/9 - 3

  f(3/4) = -19/9
• keith-graham_60bfc4587a2db

  June 2021

  f(3/4)=2.(3/4)²-3=2.(9/16)-3=9/8-3=9-24/8=-16/8=-2