In: Advanced Math
We look at the inner product space of continuous functions above
[0,1].
a) Calculate the angle between x and cosx ; x and sinx. Which angle
is the smallest?
b) Calculate the distance between x and cosx ; x and sinx. What
distance is the shortest? Hint: Remember that the distance between
two vectors f and g is the length of f − g.
c) Sketch x, cosx and sinx in the interval [0,1]. Give a geometric
explanation of the numerical values found in parts a) –b)