Ösinē(q) + cosē(q) = sin(q) + cos(q) To show that an equation is NOT an identity, you only need to show one case where the equation is NOT true. Let's pick q = 30° Ösinē(30°) + cosē(30°) = sin(30°) + cos(30°)= + = + = + 1 = 1.366025404 That is certainly false. Edwin
solve the radical equation. if there is no real solution, chose no solution 3x =(answered by Edwin McCravy)
if w=9-4i then: if w = 9 - 4i then:(answered by ewatrrr,Edwin McCravy)