In the diagram, AB Is parallel to DE .Also, DE Is drawn such that the length of DE is half the length of AB. If sin A=0.5, then what is sin E? A. 2
B. 1
C. 0.5
D. 0.25
E. 0.1

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

3382-299=3383- ? fill in the blank?

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.