\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Courses
About
Login
Register
C
⌫
\(\pi\)
e
\(\frac{a}{b}\)
!
←
→
(
)
\(\sqrt{\,}\)
\(a^{b}\)
7
8
9
\(\div\)
log
ln
4
5
6
\(\times\)
cos
cos⁻¹
1
2
3
-
sin
sin⁻¹
0
.
=
+
tan
tan⁻¹
Calculate the sum
\(3\times 5^0 + 3\times 5^1 + 3\times 5^2 + \dots + 3\times 5^6 + 3\times 5^7 = \)
7
8
9
+
4
5
6
-
1
2
3
*
C
0
.
÷
Exit