Column I Column II In A B C , if cos...

Column I Column II In ` A B C ,` if `cos24+cos2B+cos2C=-1` then we can conclude that triangle is p. Equilateral triangle In ` A B C` if `tanA >0,tanB >0a n dtanAtanB<1,` then triangle is q. Right angled triangle In ` A B C` if `cos^3A+cos^3B+cos^3C=3cosAcosBcosC` then triangle is r. Acute angled triangle In ` A B C` if `cotA >0,cotB >0a n dcotAcotB<1,` then triangle is s. Obtuse angled triangle

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