determinant zero

Which of the following statement(s) is/are false? I. The coefficient of nondetermination is found by subtracting the coefficient of determination from 1. II. As the correlation coefficient approaches zero, the coefficient of determination increases more rapidly. III. T..

If the rows and columns of a determinant are inter-changed, the value remains unaltered. If any two rows (columns) of a determinant are identical, its value of the determinant is zero. If any two rows (columns) of a determinant are interchan..

All the digits from 1, 2, 3, 4, ., 9 are significant digits. Zeros (0s) if they occur between non-zero digits, are significant For example, in the number- 325007, 2409, 308, zeros in between the digits are significant. The final zeros (0s) of an approx..

>If any two rows or columns of a determinant are equal, then its value is zero. If each element of a row or column of a determinant multiplied by k, then its value is multiplied by k. If two rows or columns of determinant are proportional, the value of the ..

The rules used for the calculation of oxidation number of an atom in a molecule are: The oxidation number of an element in the free or elementary state is always zero. For example, oxidation numbers of helium in He, hydrogen in H 2 , oxygen in O 2 , iron in Fe, bromine in Br 2 , phosph..

First, the data of concentrations versus time is obtained by a suitable method. Then, the data is plotted as concentration versus time. From the resulting plot, the instantaneous rates are determined by drawing tangents to curve and then calculating their slopes. The reaction rate so obta..

AB and CD are two mirrors fixed, as in the diagram, parallel to each other and facing each other, i.e., the reflection on CD is seen on AB. A small telescope and a vernier travelling over a scale, graduated in degrees, constitute the sextant. The sextant is fixed firmly to view the horizon, when th..

Determine whether the graph y = 3 x 2 + 3 x - 2 will intersect the x - axis in zero, one or two points. => Two or Zero or One..

Using the value of the discriminant, determine whether 2 x 2 - 3 x - 2 = 0 has two solutions, one solution, or no solution. => One or Two or Zero..

Determine the number of times the graph y = - x 2 - 4 x - 4 intersects the x -axis. => One or Zero or Two or Many..