JS Practice — Built-in Objects

Math.acos(1) Equals Zero

📖 Usage Example

// Inverse cosine — result in radians
Math.acos(1)   // → 0
Math.acos(0)   // → 1.5707... (π/2)

Use Math.acos() to find the angle (in radians) whose cosine equals a given value.

Math.acos(x)

Returns the arccosine (in radians) of a number. Math.acos(1) returns 0.

Challenge: Use Math.acos() and verify its result for input 1.

💡 Hints (2)