prove that cos2x=1-tan^2x/1+tan^2x
Question
By examining the chest x ray probability that T. B is detected when a person is actually suffering from T. B is 0.99 the probability that the doctor diagnose incorrecty that a person has a t. B a person selected at random is diagnosed to have t. B
Maths
Oct. 28, 2019, 10:01 p.m.
Answer
If a coin is tossed 50 times , find the probability of getting i) head ii) tails .if the coin is tossed again