Respuesta:
[tex]a)4.2 \times {10}^{3} \times 2 \times {10}^{ - 7} \\ = 8.2 \times {10}^{ - 4} [/tex]
[tex]c) \frac{8 \times {10}^{ - 7} }{2 \times {10}^{ - 9} } = 4 \times{10}^{ - 7 - ( - 9)} = 4 \times {10}^{2} [/tex]
[tex]d) \frac{3.5 \times {10}^{15} }{7 \times {10}^{20} } = \frac{3.5 \times 10 \times {10}^{14} }{7 \times {10}^{20} } = \frac{35}{7} \times {10}^{14 -20 } \\ = 5 \times {10}^{ - 6} [/tex]
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Respuesta:
[tex]a)4.2 \times {10}^{3} \times 2 \times {10}^{ - 7} \\ = 8.2 \times {10}^{ - 4} [/tex]
[tex]c) \frac{8 \times {10}^{ - 7} }{2 \times {10}^{ - 9} } = 4 \times{10}^{ - 7 - ( - 9)} = 4 \times {10}^{2} [/tex]
[tex]d) \frac{3.5 \times {10}^{15} }{7 \times {10}^{20} } = \frac{3.5 \times 10 \times {10}^{14} }{7 \times {10}^{20} } = \frac{35}{7} \times {10}^{14 -20 } \\ = 5 \times {10}^{ - 6} [/tex]