Hello, can someone help me with this probability question (2U Fitzpatrick):
In a raffle, 30 tickets are sold and there are two prizes. What is the probability that the person buying 5 tickets wins:
(a) neither prize
(b) both prizes
(c) at least one prize
bring sinx to other side , divide by cos , turn it into tan, tan x = 2 , x = 63 and 243
i think O_O
2cosx = sinx
2 = tanx
x = 63 degrees and 243 degrees