Chapter 9, Problem 28RE

To determine

To find:The expression of $2u+3v$ .

Answer to Problem 28RE

The expression of $2u+3v$ we get $\sqrt{2}$ and points towards 1.14.

Explanation of Solution

Given information:

The given figure,

  

Calculation:

Real number line starts at zero and hoes all the way up to positive infinity on the right side and goes all the way up to negative infinity on the left side.

It means as we move towards right from zero the value increase and as we move towards left from zero value decreases.

For symbols $>$ or $<$ the wide side always face towards larger number and narro9w side always point towards smaller number.

Therefore we can write,

  $\sqrt{2}>\mathrm{1..41}$

As $\sqrt{2}\approx 1.4142$

As 1.4142 lies on the further right of 1.41 on the positive side of real number line, so $\sqrt{2}$ is larger than 1.41. so wider side point towards $\sqrt{2}$ nd narrow side will point towards 1.41.