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We analyze an interesting problem with a parameter (analytical approach). We study the number of solutions, we take into account the limitations.
TASK TO ALL VIDEOS: wall-135395111_8104
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VK: wildmathing
UPD. (4:30) with a = 3, the root t = 2, of course, no - it’s better to say so right away.
Getting started guys! There were preparatory tasks on this topic, the graphic method was also disassembled, in general, do not blame me: in this series the tasks will often be non-childish.
MORE STEPS WITH A PARAMETER:
1. The most difficult task on KZbin: • #138. САМАЯ ТРУДНАЯ ЗА...
2. Beautiful olympiad problem: • #142. ЗАДАЧА С ПАРАМЕТ...
3. The task with the real exam: • #102. ГРАФИЧЕСКОЕ РЕШЕ...