z=y²-8y+29
z'=(y²-8y+29)'=0
2y-8=0
2y-8=0 |÷2
y-4=0
y=4.
z=4²-8*4+29=16-32+29=13.
Ответ: б).
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z=y²-8y+29
z'=(y²-8y+29)'=0
2y-8=0
2y-8=0 |÷2
y-4=0
y=4.
z=4²-8*4+29=16-32+29=13.
Ответ: б).