koram

A ball is shot from the top of a building with an initial velocity of 16m/s at an angle θ = 43∘ above the horizontal. Part A What are the horizontal and vertical components of the initial velocity? If a nearby building is the same height and 55m away, how...

Find a function f from R to R such that f is continuous at only one point?

let f:[0,1] - [0,1] be continuous function .show that there exist a in [0,1] such that f(a)=a

f is a function from R to R such that f(a) is rational when a is irrational and f(a) is irrational when a is rational . prove that f cannot be continuous