Question

express the following question into single exponential form​

Answer 1

HEY MATE,

$we \: can \: write \: it \: as \: { (\frac{11}{13}) }^{7} + {( \frac{11}{13}) }^{ - 7}$

Now we will take

${ \frac{11}{13} }^{7}$

as common.

$now \: we \: have \: \frac{11}{13} + { \frac{11}{13} }^{ - 1} \\ that \: can \: be \: written \: as \: \frac{11}{13} + \frac{13}{11} \\ = \frac{121 + 169}{143} = \frac{290}{143} \times { \frac{11}{13} }^{7} = \frac{290 \times {11}^{6} }{169}$

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THANKS...

Answer 2

Answer:

The answer is

$(\frac{11}{13} ) ^{14}$