UPSKILL MATH PLUS
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Learn more(i) If \(\frac{cos \ \alpha}{cos \ \beta} = m\) and \(\frac{cos \ \alpha}{sin \ \beta} = n\), then prove that \((m^2 + n^2) cos^2 \ \beta = n^2\).
(ii) If \(\cot \theta + \tan \theta = x\) and \(\sec \theta - \cos \theta = y\), then prove that \((x^2 y)^{\frac{2}{3}} - (x y^2)^{\frac{2}{3}} = 1\).
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