Evaluating Inverse Cosine Expressions

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Quizzes Created: 7288 | Total Attempts: 9,526,295
| Questions: 20 | Updated: Nov 26, 2025
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1) What is the exact value of arccos(1/2)?
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About This Quiz
Evaluating Inverse Cosine Expressions - Quiz

Think of this quiz as your practice ground for decoding across values. You’ll be working through exact values of inverse cosine, matching them to their correct angles in radians. From simple inputs like 0 and 1 to trickier ones involving roots, this quiz makes sure you know exactly where... see moreeach cosine value lives on the unit circle.
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2) What is the exact value of arccos(0)?
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3) What is the exact value of arccos(-1/2)?
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4) What is the exact value of arccos(√3/2)?
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5) What is the exact value of arccos(-√3/2)?
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6) What is the exact value of arccos(√2/2)?
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7) What is the exact value of arccos(-√2/2)?
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8) What is the exact value of arccos(1)?
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9) What is the exact value of arccos(-1)?
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10) Evaluate arccos(cos(7π/6)).
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11) Evaluate arccos(cos(11π/6)).
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12) Evaluate arccos(cos(4π/3)).
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13) Evaluate arccos(cos(-π/3)).
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14) Evaluate arccos(cos(5π/4)).
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15) Evaluate arccos(cos(9π/4)).
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16) Evaluate arccos(cos(-5π/6)).
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17) What is the exact value of arccos((√6 + √2)/4)?
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18) What is the exact value of arccos(-(√6 + √2)/4)?
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19) What is the exact value of arccos((√6 - √2)/4)?
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20) What is the exact value of arccos(-(√6 - √2)/4)?
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What is the exact value of arccos(1/2)?
What is the exact value of arccos(0)?
What is the exact value of arccos(-1/2)?
What is the exact value of arccos(√3/2)?
What is the exact value of arccos(-√3/2)?
What is the exact value of arccos(√2/2)?
What is the exact value of arccos(-√2/2)?
What is the exact value of arccos(1)?
What is the exact value of arccos(-1)?
Evaluate arccos(cos(7π/6)).
Evaluate arccos(cos(11π/6)).
Evaluate arccos(cos(4π/3)).
Evaluate arccos(cos(-π/3)).
Evaluate arccos(cos(5π/4)).
Evaluate arccos(cos(9π/4)).
Evaluate arccos(cos(-5π/6)).
What is the exact value of arccos((√6 + √2)/4)?
What is the exact value of arccos(-(√6 + √2)/4)?
What is the exact value of arccos((√6 - √2)/4)?
What is the exact value of arccos(-(√6 - √2)/4)?
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