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Learn topics such as nutrition, physical activity, mental health, stress management and healthy lifestyle choices.

Personal Health

From macronutrients and vitamins to metabolism and diet planning, nutrition concepts are explained clearly and connected to real-life examples.

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Simplify the expression (2x−1y34x2y−1)−2\(\left\)(\(\frac{2x^{-1}\)y^3}{4x^2y^{-1}}\(\right\))^{-2}.

Simplify the expression ${(\frac{2 x^{- 1} y^{3}}{4 x^{2} y^{- 1}})}^{- 2}$ .