If $${x^2} + frac{1}{{{x^2}}} = frac{7}{4}$$ for x > 0 then what is the value

MCQ Practice

If $${x^2} + frac{1}{{{x^2}}} = frac{7}{4}$$ for x > 0 then what is the value of $${x^3} + frac{1}{{{x^3}}} = ?$$

Subject: MathematicsTopic: Algebra

$$frac{{3sqrt 3 }}{5}$$

$$frac{{3sqrt {15} }}{5}$$

$$frac{{3sqrt {15} }}{8}$$

$$frac{{3sqrt 5 }}{8}$$

Correct Answer: C