Tính

----- Nội dung ảnh -----
(7)

BIVN

a) Sính
\[
a) 2^{50} \cdot 5^{7} + 2^{13} \cdot 5^{4}
\]
\[
b) 2^{8} \cdot 27^{7} + 4 \cdot 6^{9}
\]
\[
c) 4^{15} \cdot 9^{9} - 4^{3} \cdot 8^{9}
\]
\[
\frac{2^{9} \cdot 6^{19} - 7 \cdot 2^{29} \cdot 27^{6}}{5^{2} \cdot 3^{9} + 6^{3} \cdot 5^{7} + 8^{10} + 3^{10}}
\]
\[
d) S = \sum_{i=3}^{5} i^5 + 5^7 + ... + 8^{10} + 3^{10}
\]
\[
e) S = \frac{1}{2} + \frac{1}{3} + \frac{1}{3^{4}} + \frac{1}{3^{50}} + \frac{1}{3^{51}}
\]
\[
f) A = -\frac{1}{3} + \frac{1}{2} - \frac{1}{3^{3}} + \frac{1}{3^{4}} + \frac{1}{3^{50}} - \frac{1}{3^{51}}
\]
\[
g) A = -5 - 5^{2} + 5^{3} - ... - 5^{104}
\]
\[
h) 29. [88 - (19 + 17)^{2} \cdot 18]
\]
\[
i) 2345 - 1000: [19 - 2 \cdot (24 - 18)^{2}]
\]