Go language provides inbuilt support for basic constants and mathematical functions to perform operations on the numbers with the help of the math package. You are allowed to find the cosine of the specified radian argument with the help of Cos() function provided by the math package. So, you need to add a math package in your program with the help of the import keyword to access the Cos() function.
func Cos(y float64) float64
- If you pass +Inf or -Inf in this function, then this function will return NaN(not-a-number).
- If you pass NaN in this function, then this function will return NaN.
Result 1: 0.7 Result 2: NaN Result 3: 1.0 Result 4: NaN Result 5: -1.0
1.0 + 0.0 = 1.0