find 5 cos^2 60 + 4 sec^2 30 - tan^2 45  | Trigonometric Ratios

find 5 cos^2 60 + 4 sec^2 30 - tan^2 45 | Trigonometric Ratios

find 5 cos^2 60 + 4 sec^2 30 - tan^2 45 #TrigonometircRatios, #IITFoundation, #SaiPanchakshar