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Evaluate Cos inverse (cos 13π÷6) Sin inverse ( sin 2)

Evaluate
Cos inverse (cos 13π÷6)
Sin inverse ( sin 2)

Grade:12

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
Cos^-1 (cos 13pi/6) = cos^-1 (cos (2pi + pi/6))
 
 = cos^-1 (cos pi/6) = pi/6
 
 
Now 2nd question
Sin^-1 (sin 2) = sin^-1 ( sin (pi -2)) = pi - 2

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