Ok I have added this to htaccess file and everything seems to be redirecting in browser ok but is it good enough for google?

Can someone check and tell me if it is correct , if not can you help with code? Thanks in advance!

RewriteEngine on
rewritecond %{http_host} ^titanappliancerepair.com [nc]
rewriterule ^(.*)$ http://www.titanappliancerepair.com/$1 [r=301,nc]

RewriteEngine on
rewritecond %{http_host} ^titanappliancerepair.com/ [nc]
rewriterule ^(.*)$ http://www.titanappliancerepair.com/$1 [r=301,nc]

RewriteEngine on
rewritecond %{http_host} ^titanappliancerepair.com/index.html [nc]
rewriterule ^(.*)$ http://www.titanappliancerepair.com/$1 [r=301,nc]

RewriteEngine on
RewriteBase /

redirect html pages to the root domain

rewriterule ^index.html$ / [r=301,nc]

This is what I have so far in htaccess file

RewriteEngine on
rewritecond %{http_host} ^titanappliancerepair.com [nc]
rewriterule ^(.*)$ http://www.titanappliancerepair.com/$1 [r=301,nc]

RewriteEngine on
rewritecond %{http_host} ^coolexample.com/ [nc]
rewriterule ^(.*)$ http://www.titanappliancerepair.com/$1 [r=301,nc]

RewriteEngine on
rewritecond %{http_host} ^coolexample.com/index.html [nc]
rewriterule ^(.*)$ http://www.titanappliancerepair.com/$1 [r=301,nc]

RewriteEngine on
rewritecond %{http_host} ^www.titanappliancerepair.com/index.html [nc]
rewriterule ^(.*)$ http://www.titanappliancerepair.com/$1 [r=301,nc]

I want to forward all urls to http:www.mysite.com but am a little confuse because I am getting duplicate content error:

Pages with Duplicate Page Content

as of Jan 15http://titanappliancerepair.com/ 1 duplicatehttp://titanappliancerepair.com 1 duplicatehttp://titanappliancerepair.com/index.html 1 duplicate*****************************************************************What should I put ion htaccess file so I can forwardhttp://titanappliancerepair.com/index.htmlhttp://titanappliancerepair.comhttp://titanappliancerepair.com/to  http://www.titanappliancerepair.comor what is the correct way to do it?I'm confused because when I enter http://titanappliancerepair.com/ in browser it showshttp://titanappliancerepair.com so how can it be considered duplicate content?.Can someone help?I have godaddy and they have gave me this code to put RewriteEngine on
rewritecond %{http_host} ^coolexample.com [nc]
rewriterule ^(.)$ http://www.coolexample.com/$1 [r=301,nc]What is correct?