3.The zeroeth divided difference of the function f, with respect to \\( x_{i} \\) denoted by \\( f[x_{i}]\\) can be written as
a.\\(f[x] = f(xi)\\)
b.\\(f[x_{0}] = f(x_{i})\\)
c.\\(f[x] = f(x_{i})\\)
d.\\( f[x_{i}] = f(x_{i})\\)
4.When the number of rows is equal to the number of columns in a matrix, it is called _________ matrix
a.square
b.equal
c.similar
d.singular
1
Expert's answer
2019-09-11T10:34:35-0400
By definition, zero divided divided difference of f at xi , denoted f[xi] is equal to f(xi) , i.e. the value of function at that point, so the answer to 3 is d).
A square matrix is the matrix which has equal number of rows and columns, hence the answer to 4 is a).
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