EvaluateCos inverse (cos 13π÷6)Sin inverse ( sin 2)
Nithya , 6 Years ago
Grade 12
Differential Calculus> Evaluate Cos inverse (cos 13π÷6) Sin inve...
1 Answers
Arun
Last Activity: 6 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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