Question

$if \: u \: = \sqrt{a {}^{2}cos {}^{2} \alpha + b {}^{2}sin {}^{2} \alpha } + \sqrt{a {}^{2}sin {}^{2} \alpha + b {}^{2}cos {}^{2} \alpha } \\ then \: the \: difference \: between \: the \: maximum \: and \: minimum \: value \: of \: {u}^{2} will \: be \:$
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Answer 1

Explanation:

3/2 is the answer......

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Answer 2

$\huge \tt ✞︎\red{A} \pink{N }\green{S} \orange{W} \purple{E} \blue{R}✞︎$

$\huge \bold \red{ \frac{3}{2} \: is \: the \: correct \: answer }$

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