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4
tan 60° sec 30°+ sin 31° sec 59°+ cot 59°cot31°/8sin^2 30°-tan^2 45°​

By Ayla

4
tan 60° sec 30°+ sin 31° sec 59°+ cot 59°cot31°/8sin^2 30°-tan^2 45°​

About the author
Ayla

The area of a triangle with side length a, b and c (a>b>c) is 1 unit. Then b cannot be less than​

Draw a rectangle with length 6.5cm and breadth 4.5cm; using ruler and compass.​

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