\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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C
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\(\pi\)
e
\(\frac{a}{b}\)
!
←
→
(
)
\(\sqrt{\,}\)
\(a^{b}\)
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\(\div\)
log
ln
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\(\times\)
cos
cos⁻¹
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-
sin
sin⁻¹
0
.
=
+
tan
tan⁻¹
Sophia repaid \(\dollar 1\,080\) in total, including \(\dollar 80\) of interest.
Find the original amount (principal) that Sophia borrowed.
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0
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\(\dollar\)
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