Ask Question
27 November, 11:11

Write the expression as either the sine, cosine, or tangent of a single angle. sin (pi/2) cos (pi/7) + cos (pi/2) sin (pi/7)

+4
Answers (1)
  1. 27 November, 14:51
    0
    I will use the sin (a + b) identity:

    sin (a + b) = sina cosb + cosa sinb and

    here a = π/2 and b = π/7

    so sin (π/2 + π/7)

    = sin (9π / 14)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Write the expression as either the sine, cosine, or tangent of a single angle. sin (pi/2) cos (pi/7) + cos (pi/2) sin (pi/7) ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers