First: “invoke” and “evoke” have two different meanings.
in·voke
inˈvōk
verb
cite or appeal to (someone or something) as an authority for an action or in support of an argument.
“the antiquated defense of insanity is rarely invoked today”
synonyms: cite, refer to, adduce, instance;
call on (a deity or spirit) in prayer, as a witness, or for inspiration.
synonyms: appeal to, pray to, call on, supplicate, entreat, solicit, beg, implore;
call earnestly for.
“she invoked his help against this attack”
Source: Oxford Dictionaries, definition of “invoke”
versus:
e·voke
iˈvōk
verb
1. bring or recall to the conscious mind.
“the sight of American asters evokes pleasant memories of childhood”
synonyms: bring to mind, put one in mind of, conjure up, summon (up), invoke, elicit, induce, kindle, stimulate, stir up, awaken, arouse, call forth, elicit (a response).
“the awkward kid who evoked giggles from his sisters”
synonyms: appeal to, pray to, call on, supplicate, entreat, solicit, beg, implore;
call earnestly for.
“she invoked his help against this attack”
Source: Oxford Dictionaries, definition of “evoke”
Perhaps a better way to say it is as follows:
"We have addressed three questions in this article."