If A,B,C are interior angles of a triangle ABC,then show that tan(A+B)/2=cotC/2
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Step-by-step explanation:
: A rhombus is a quadrilateral with all sides of equal length. But a square has not only all sides equal but also the measure of all interior angles are right angles. So, to show : any rhombus is a square, we need to show any angle of a rhombus is right angle
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