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Algebra, STD2 EQ-Bank 02 MC

If  \(w=2y^3-1\), what is the value of \(y\) when  \(w=13\)?

  1. \(\dfrac{\sqrt[3]{14}}{2}\)
  2. \(\sqrt[3]{6}\)
  3. \(\sqrt[3]{7}\)
  4. \(\sqrt[3]{14}\)
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\(C\)

Show Worked Solution

\(\text{When}\ w=13:\)

\(w\) \(=2y^3-1\)
\(13\) \(=2y^3-1\)
\(2y^3\) \(=14\)
\(y^3\)  \(=\dfrac{14}{2}=7\)
\(y\) \(=\sqrt[3]{7}\)

   
\(\Rightarrow C\)

Filed Under: Formula Rearrange (Std2-2027) Tagged With: Band 4, smc-6236-20-Non-Linear, syllabus-2027

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