**Math mini-contest problem for Day 2 on D.Buzz for May 2021 π**

A calculator of Ahmad can perform only the *sine* function in trigonometry. The *arc tangent* value of an angle is 30.26Β°. What is the *sine* value of the angle?

**Math mini-contest problem for Day 2 on D.Buzz for May 2021 π**

A calculator of Ahmad can perform only the *sine* function in trigonometry. The *arc tangent* value of an angle is 30.26Β°. What is the *sine* value of the angle?

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```
arctan(x) = 30.26 deg = 0.5281 rad
x = tan(0.5281) = 0.5834
sin(x) = sin(0.5834) = 0.5509
```