The principal solution of cos-1(-1/2) is - HSC Arts 12th Board Exam - Mathematics and Statistics
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The principal solution of `cos^-1(-1/2)` is :
The principal solution of `cos^-1(-1/2)= ` An angle in [0,π], whose cosine is -1/2
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Solution The principal solution of cos-1(-1/2) is Concept: Inverse Trigonometric Functions - Inverse Trigonometric Functions - Principal Value Branch.