What is the value of cos(π4)

cos
⁡
(
𝜋
4
)
?(1 point)
Responses

3√3
3
3
the fraction with numerator square root of 3 and denominator 3

12
1
2
1 half

3√2
3
2
the fraction with numerator square root of 3 and denominator 2

2√2