1.(0,25)^-2 x (0,25)^4 2.(2x7)^3 x 7^2 x 1 per 2x7^5
Matematika
pendekar4
Pertanyaan
1.(0,25)^-2 x (0,25)^4
2.(2x7)^3 x 7^2 x 1 per 2x7^5
2.(2x7)^3 x 7^2 x 1 per 2x7^5
1 Jawaban
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1. Jawaban bestarin
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