Question

Which of the following trigonometric ratios are correct?

Answer 1

9514 1404 393

Answer:

  D, F

Step-by-step explanation:

The mnemonic SOH CAH TOA can help you with this. It reminds you ...

  Sin = Opposite/Hypotenus

  sin(40°) = x/b . . . . matches D

  Cos = Adjacent/Hypotenuse

  cos(40°) = a/b . . . . no match

  Tan = Opposite/Adjacent

  tan(40°) = x/a . . . . matches F