In ∆ABC, if b=10, a \cos^2C/2+c \cos^2A/2=15, and the area of the triangle is 15\sqrt{3} sq.units, then cotB/2=

TS EAMCET 9-Sep-2020 Shift 1 Solved Paper

Section: Mathematics

Question : 27 of 160

Marks: +1, -0

In ∆ABC, if b=10, acos2

+ccos2

=15, and the area of the triangle is 15√3 sq.units, then cot

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