Matematika

Pertanyaan

1.(0,25)^-2 x (0,25)^4


2.(2x7)^3 x 7^2 x 1 per 2x7^5


1 Jawaban

  • 1.(0,25)^-2 x (0,25)^4
    (1/4)^2 - 2(1/4)^4
    =1/16 - 2(1/256)
    =14/256=7/128

    2.(2x7)^3 x 7^2 x 1 per 2x7^5
    =2^3 x 7^3 x 7^2 x 2^-1 x 7^-5
    =2^(3-1) x 7^(3+2-5)
    =2^2 x 7^0
    =4 x 1=4

Pertanyaan Lainnya