Rozella Mcmullen

An octagon is a square with the four corners removed. These four corners are right angles triangles, with a hypotenuse of of 6 cm. So we need to find the area o Read more Math and Arithmetic +2 When would you use the law of sines or law of cosines instead of a trigonometric ratio? Asked by Anonymous It is NOT the Law of Sines/Cosine , but the SINE / COSINE Rule. Sine Rule is SinA/a = SinB/b = SinC/c Where 'A' , 'B', and 'C' (Capitals) are the angular valu Read more Math and Arithmetic +2 What is a sine ratio? Asked by Anonymous The Sine ratio is Sine(angle) = opposite side / hypotenuse side. This is written in 'short-hand' as Sin(angle) = o / h Similarly the cosine ratio is Cosine(angl Read more Math and Arithmetic +1 Theta in Greek? Asked by Anonymous 'Theta' is a Classical Greek letter. There is no equivalent in the modern western alphabet. 'Theta' as a letter symbol looks like an oval on its narrow bend, Read more Calculus +1 How do you Prove sin x times sec x equals tan x? Asked by Anonymous Remember SecX = 1/CosX Substitute SinX X 1 /CosX = SinX / CosX = TanX