Matematika

Pertanyaan

Diketahui nilai a = 4, b=1/2 dan c=1. Nilai a⁻²b⁻⁵c³/a⁻⁴b⁻³c⁻¹ =....

2 Jawaban

  • [tex]\displaystyle \frac{a^{-2}b^{-5}c^{3}}{a^{-4}b^{-3}c^{-1}}=a^{-2-(-4)}b^{-5-(-3)}c^{3-(-1)}\\\frac{a^{-2}b^{-5}c^{3}}{a^{-4}b^{-3}c^{-1}}=a^{-2+4}b^{-5+3}c^{3+1}\\\frac{a^{-2}b^{-5}c^{3}}{a^{-4}b^{-3}c^{-1}}=a^{2}b^{-2}c^{4}\\\frac{a^{-2}b^{-5}c^{3}}{a^{-4}b^{-3}c^{-1}}=4^{2}\cdot\left(\frac12\right)^{-2}\cdot1^{4}\\\frac{a^{-2}b^{-5}c^{3}}{a^{-4}b^{-3}c^{-1}}=16\cdot4\cdot1\\\boxed{\boxed{\frac{a^{-2}b^{-5}c^{3}}{a^{-4}b^{-3}c^{-1}}=64}}[/tex]
  • a = 4
    b = ½
    c = 1

    Nilai dari
    = (a`².b^-5.c³) / (a`⁴.b`³.c`¹)
    = (4`².(½)^-5.1³) / (4`⁴.(½)`³.1`¹)
    = 4^-2-(-4) . ½^-5-(-3) . 1^3-(-1)
    = 4². (½)`² . 1⁴
    = 16 . 4 . 1
    = 64

    Semoga berguna +_+

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