// Practice Set · JS Math · guest

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Question 1 of 5 from: JS Math

What does this log?

console.log(Math.max([4, 19, 7]), Math.max(...[4, 19, 7]), Math.max());

19 19 0
NaN 19 -Infinity
19 19 -Infinity
NaN 19 undefined

Question 2 of 5 from: JS Math Reference

What does this log?

console.log(Math.sqrt(-1), Math.acos(2), Math.log(-1));

Error on the first line
NaN NaN 0
NaN NaN NaN
-1 2 -1

Question 3 of 5 from: JS Math Reference

What does this log?

const toDeg = rad => rad * 180 / Math.PI;
console.log(toDeg(Math.atan2(10, 0)), toDeg(Math.atan2(0, 10)));

90 0
10 0
0 90
Infinity 0

Question 4 of 5 from: JS Math Reference

What does this log?

console.log(Math.sign(-8), Math.sign(0), Math.abs(58 - 71));

-1 1 13
-1 0 13
-8 0 13
-1 0 -13

Question 5 of 5 from: JS Math Random

Which expression gives a random whole number from 1 to 10, with both 1 and 10 possible?

Math.floor(Math.random() * 11)
Math.floor(Math.random() * 10) + 1
Math.floor(Math.random() * 10)
Math.round(Math.random() * 10)

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