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27 January, 12:46

5. What exactly will each of the following expressions produce?

a. sin42°cos17° - cos42°sin17°

b. cos94°cos18° + sin94°sin18°

c. sin coste - sintos

3

tan19° + tan 47°

d.

1-tan 19° tan 47°

+1
Answers (1)
  1. 27 January, 15:35
    0
    Theses are very tricky letters with words and i see them on calculators all the time
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