Please capitalize where necessary: there are maximum 4 primary or 3 primary and 1 extended.
A: There are maximum 4 primary or 3 primary and 1 extended.
Q: on 4 november 1833 hamilton read a paper to the royal irish academy expressing complex numbers as algebraic couples, or ordered pairs of real numbers.

A: On 4 November 1833 Hamilton read a paper to the Royal Irish Academy expressing complex numbers as algebraic couples, or ordered pairs of real numbers.
Q: note: you can only save the recovered outlook deleted items folder if you’re using the full version of this outlook recovery wizard.
A: Note: You can only save the recovered Outlook Deleted Items folder if you’re using the full version of this Outlook recovery wizard.
Problem: now you can improve weld inspection processes and save time, money and resources, too.
Can you repeat this sentence, but capitalize it?
Answer: Now you can improve weld inspection processes and save time, money and resources, too.
Text: one small irritant here, though, because it is all too easy to move the wheel, thus causing some kind of unintended scroll movement, when you are actually trying to click the wheel.

Correct capitalization: One small irritant here, though, because it is all too easy to move the wheel, thus causing some kind of unintended scroll movement, when you are actually trying to click the wheel.
Please capitalize where necessary: your dog may have a brief recovery period of one to four months.
A:
Your dog may have a brief recovery period of one to four months.