Question

hlw ❤❤

Chapter name : Inverse Trignometric Function

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Answer 1

tan^-1 1 = pie/4

cos^-1 ( -1/2) = pie - pie/3 = 2 pie/3

sin^-1 ( -1/2) = - pie/6

pie/4 + 2 pie/3 - pie/6

3 pie + 8 pie - 2 pie)/ 12

11 pie - 2 pie)/12

9 pie/12

3 pie/4

Answer 2

Answer:

tan inverse (1)= pie/4      -------------(1)

cos inverse (- 1/2) = pie - pie/3 = 2pie/3   -----------2

sin inverse(-1/2) = -pie/6     ------------3

 

adding all the equations we get

pie/4 + 2pie/3 - pie/6

= 3pie/4