If costheta = 1213 and theta is acute, find sintheta.

  1. 1213
  2. 1312
  3. 512
  4. 513
Answer

D) 513

Draw a right triangle with opposite = 5, adjacent = 12, hypotenuse = 13 (Pythagoras: 5^2 + 12^2 = 13^2). Then sintheta = 513. SLO M-09-B-24 · Application

Mathematics MCQ · More Trigonometric Identities MCQs · Practise