Solution 3.3:1d

From Förberedande kurs i matematik 1

(Difference between revisions)
Jump to: navigation, search
Current revision (14:19, 1 October 2008) (edit) (undo)
m
 
Line 1: Line 1:
-
Exactly as in exercise c, we write the left-hand side as
+
Exactly as in exercise c, we write the left-hand side as <math>10^{-x}</math>, and the right-hand side as <math>0\textrm{.}0001 = 10^{-4}</math>, i.e. <math>10^{-x} = 10^{-4}</math>, which gives <math>x=4\,</math>.
-
<math>\text{1}0^{-x}</math>, and the right-hand side as
+
-
<math>0.000\text{1}=\text{1}0^{-4}</math>, i.e.
+
-
<math>\text{1}0^{-x}=\text{1}0^{-4}</math>, which gives
+
-
<math>x=\text{4}</math>.
+

Current revision

Exactly as in exercise c, we write the left-hand side as \displaystyle 10^{-x}, and the right-hand side as \displaystyle 0\textrm{.}0001 = 10^{-4}, i.e. \displaystyle 10^{-x} = 10^{-4}, which gives \displaystyle x=4\,.