\( A B C \) is a triangle in which the line joining \( I \), the in... VIDEO
\( A B C \) is a triangle in which the line joining \( I \), the incentre and \( O \) the circumcentre of the triangle is parallel to \( B C, bc . O E \) and \( I D \) are perpendicular on \( B C \).https://bit.ly/YTAI_PWAP https://www.pw.live/
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Column 2
(a) \( \sin ^{-1}(2 / 3)+\cos ^{-1}(2 / 3) \)
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