If a>0, b>0 then the maximum area of the parallelogram whose three vertices are O(0,0) \.A(a \cos \\theta, b \sin \\theta) and {B}({a} \cos \\theta,-{b} \sin \\theta) is

Correct Answer is : ab when θ=π∕4

WBJEE 2021 Math Solved Paper

CATEGORY - I (Q:1 to Q50)

Carry 1 mark each and only one option is correct. In case of incorrect answer or any combination of more than one answer, ¼ mark will be deducted.

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If a>0,b>0 then the maximum area of the parallelogram whose three vertices are O(0,0).A(a‌cos‌θ,b‌sin‌θ) and B(a‌cos‌θ,−b‌sin‌θ) is

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