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Home >> Trigonometry Ratios >> T Ratios of Angles - 30, 45, 60 & 90 degree angles >> Examples

T Ratios of Angles - 30, 45, 60 & 90 degree angles in Trigonometry : Solved Examples

T Ratios of Angles - 30, 45, 60 & 90 degree angles Find Height, Distance using T - Ratios

Find Cosec2 30° + Sin2 45° - Sec2 60°
According to T ratio table the cosec, sin and sec degree values are

Cosec 30° = 2

Sin 45° =    1  
 2 


Sec 60° = 2

we get the following equation

= (2)2 + ( 1 /  2  )2 - (2)2

4 + 1
2
- 4


= 4.5 - 4 = 0.5

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