C
the sum to infinity of a geometric series =
where a is the first term and r the common ratio
= = 81 × 3 = 243
Reflections preserve length and size. Give a quality the a reflection does not preserve.
2 answers:
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Remark
If you just want the way this would be written out the answer is
Note
1. The quotient is the answer of a division problem.
2. The number is represented by the letter x