If u=\sqrt{a^2 \cos ^2 \theta+b^2 \sin ^2 \theta}+\sqrt{a^2 \sin ^2 \theta+b^2 \cos ^2 \theta} then the difference between the maximum and minimum values of u^2 is given by [AIEEE 2004]

AIEEE 2004 Math Solved Paper

Section: Mathematics

Question : 1 of 68

Marks: +1, -0

If u=√a2cos2θ+b2sin‌2θ+√a2sin‌2θ+b2cos2θ
then the difference between the maximum and minimum values of u2 is given by

[AIEEE 2004]

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