The logarithmic function is .
Consider .
Substitute the value of in above function. \ \
Using calculator .
.
The value of is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=59ade30650689bf46bb90b6dfe605ac5.png\")
..![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5822d053311fca15f7ff62e02545d56c.png\")
in above function. \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7ef1315220fbb8f9342417201b605f82.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f79104ab8d72c9b30ed30526a40b207f.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1a9abedd5b2b1c2ae766c5339f811bb6.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2d3e41a007e247c198f01f572edd8677.png\")
is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=01bb09192a419b54a7920924af06afb2.png\")
.