htaccess redirect?

Question

Apache HTTP Server

There is a first pagination page on the site

site.ru/category?PAGEN_1=1&SIZEN_1=50

Answer 1

RewriteCond %{QUERY_STRING} (^|&)PAGEN_1=1($|&)
RewriteCond %{QUERY_STRING} (^|&)SIZEN_1=50($|&)
RewriteRule ^(.*)$ /$1? [R=301,L]