F`(z)=-8cos4zsin4z/cos²4z=-4sin8z/cos²4z
f`(π/16)=-4sinπ/2/cos²π/4=-4:1/2=-8
f`(t)=-8costsint=-4sin2t
f`(π/4)=-4sinπ/2=-4
f`(t)=40sin^4(2t)cos(2t)
f`(π/8)=40sin^4(π/4)cos(π/4)=40*1/4*√2/2=5√2
f`(z)=cosz*e^sinz -sinz*e^cosz
f`(π/2)=cosπ/2*e^sinπ/2 -sinπ/2*e^cosπ/2=0-1=-1
f`(y)=3/tg3ycos²3y=3cos3e/sin3ycos²3y=3/sin3ycos3y=6/sin6y
f`(π/12)=6/sinπ/2=6/1=6
1) <span>49 156-<span>26 012=23 144</span></span>
<span><span><span>Ответ: на 23144 число 26 012 меньше числа 49 156</span></span></span>
<span><span><span>2) <span>26 012 - 17 381=8631</span></span></span></span>
Ответ: <span>на 8631 число 26 012 больше числа 17 381</span>
20/6=3 2/6=3 1/3))))))))))))))