i really dont know how to ue the Latex. it doesnt work although i try it for many times. so, im new to this chapter. maybe this question is easy to be solved, but i cant get it. a continuous random variable X has cumulative distribution as attached. the question is what is the value of alpha. i try doing like this but it doesnt give any answer though. F(-1) = 0 = (alpha)(-1)+(alpha) what is the working so that i can get the answer.