ethanhopewell1pc6ztd ethanhopewell1pc6ztd

28-07-2018
Mathematics

contestada

Which is the simplified form of r^-7 + s^-12? arrows to the left of -7 and -12 represent exponents,
Options are,
A. 1/r^7s^12
B. -r^7 - s^12
C. r^7/s^12
D.1/r^7 + 1/s^12

Respuesta :

konrad509 konrad509

28-07-2018

[tex] a^{-b}=\dfrac{1}{a^b}\\\\
r^{-7}+s^{-12}=\dfrac{1}{r^7}+\dfrac{1}{s^{12}}\implies \text{D} [/tex]

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helloimnothappy helloimnothappy

28-07-2018

Answer is D, 1/r^7 + 1/s^12. Im positive 100%

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