Question

Cosec 30° + Sin 60 ÷
1 +sin 30° - cosec 60​

Answer 1

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Solution : 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 x ( 1 / √ 2  )2 - (2)2

4 x 1

2 - 4

= 2 - 4 = -2