This is the 3024th most frequent Russian word.
задачами
"Tasks" or "problems" in the instrumental plural form.
The word 'задач' here is in the genitive plural form, used after a noun to denote possession or relation.
Он занимается решением важных задач.
He is engaged in solving important tasks.
In this sentence, 'задачами' is in the instrumental plural form, indicating the means or instruments with which the action is performed.
Мы справляемся с различными задачами каждый день.
We deal with various tasks every day.
Here, 'задачами' is also in the instrumental plural form, showing the object of sharing or interaction.