<em>1) y'(6sinx-x⁷)'=6сosx-7x⁶</em>
<em>2)y=(√x-7cosx)'=1/(2√x)+7sinx</em>
<em>3)y=(5x-cosx)'=5+sinx</em>
<em>4)( 3㏑x+ctgx)'=3/x-1/(sin²x)</em>
36:11=3(ост. 3)
27:4=6(ост. 3)
156:10=15(ост. 6)
384:100=3(ост. 84)
9900:100:9=11
9800:490:10=2
1600:100:16=1
2500:250:10=1
7200:360:10=2
4400:100:4=11