\( \DeclareMathOperator{cosec}{cosec} \)

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Here are some exam-style questions on this statement:

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*Prove algebraically that \(0.2\dot6\) can be written as \( \dfrac{4}{15}\)*" ... more - "
*Use algebra to prove that \(0.3\dot1\dot8 \times 0.\dot8\) is equal to \( \frac{28}{99} \).*" ... more - "
*(a) Prove that the recurring decimal \(0.\dot2 \dot1\) has the value \(\frac{7}{33}\)*" ... more - "
*(a) Use algebra to show that the recurring decimal \(0.\dot2 \dot4\) can be written as \( \frac{8}{33}\).*" ... more

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