Multiple choice general knowledge

tan45 =

  1. infinity

  2. 1

  3. 0

  4. 3.14
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

tan(45°) = sin(45°)/cos(45°) = (√2/2)/(√2/2) = 1. At 45 degrees, sine and cosine have equal values, so their ratio is 1. Infinity would mean cos(45°) = 0, which is false.