Question
Maths
Oct. 20, 2020, 6:52 p.m.
Answer
If A=2 -1 3 ,B= -3 2 -1 then find AB abd BA.
-3 2 0 0 5 2
5 1 -1 1 -2 1
Is AB=BA ?
-3 2 0 0 5 2
5 1 -1 1 -2 1
Is AB=BA ?
On one page of a telephone directory, were 200 telephone numbers. The frequency distribution of their unit place digit (for example, in the number 25828573,the unit place digit is 3) is given in the following table:
A coin is tossed 20 times in which head turnup 13 times.what is the probability of getting a tail in the next toss?