Which expression is identical to sintheta1 - costheta?

  1. sintheta1 + costheta
  2. 1 - costhetasintheta
  3. tantheta
  4. 1 + costhetasintheta
Answer

D) 1 + costhetasintheta

Using sin^2theta + cos^2theta = 1 and the definitions of the ratios, sintheta1 - costheta = 1 + costhetasintheta. SLO M-09-B-23 · Knowledge

Mathematics MCQ · More Trigonometric Identities MCQs · Practise