IfA+B+C=180°prove that sin(a+b/2 )=cos(c/2)

Martha needs 22.25 strawberries for every 5 smoothies she makes. complete the table to see how many strawberries she would need to make 10 smoothies and 20 smoothies.

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a