Which articles should I use in sample sentence below?
I prepared a/the guide about component installation. Please, check it by a/the link http://... on a/the page 15.
Which articles should I use in sample sentence below?
I prepared a/the guide about component installation. Please, check it by a/the link http://... on a/the page 15.
1)
I prepared a/the guide about...
If you have already mentioned the guide, or your readers are expected already to know about it, then use the.
The (Cambridge)
Used before nouns to refer to particular things or people that have already been talked about or are already known or that are in a situation where it is clear what is happening:
I just bought a new shirt and some new shoes. The shirt was pretty expensive, but the shoes weren't.
Please would you pass the salt.
I'll pick you up at the airport.
If you haven't already introduced the guide and your readers don't already know about it, then I would use a.
2)
Please, check it by a/the link http://...
The sentence doesn't make sense as it stands, but you can add the word following, because you want your readers to follow the link.
This isn't just any link. It's the link you want your readers to follow to check your guide, so you should use the here:
Please, check it by following the link http://...
3)
on a/the page 15.
Page doesn't need an article so you omit both, which gives you this:
on page 15.
For a general rule when your phrase is of the form:
(on object x) where x is some number
you don't need to include an article.
For a slightly more lengthy discussion on this see here: On page seven vs. on [a/the] page seven
So your final sentence would read:
I prepared the guide about component installation. Please, check it by following the link http://... on page 15.
You are placing too much emphasis on please with the use of the comma in my opinion so I would actually omit it and end up with this:
I prepared the guide about component installation. Please check it by following the link http://... on page 15.
or if your readers haven't already been introduced to the guide:
I prepared a guide about component installation. Please check it by following the link http://... on page 15.