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7cos(7x)*х∧10+10*х∧9*sin(7x)=7*х∧10*cos(7x)+10*х∧9*sin(7x) [3/cos²(3x)*е∧(-5х)-tg(3х)*(-5)е∧(-5х)]/е∧(-10х)=[е∧(-5х)( (3+5*sin(3x)/cos(3x)*cos²(3x))]/е∧(-10х)=(3+5sin(3x)cos(3x))/cos²(3x)е∧(-5х) =(3+2,5sin(6x))/cos²(3x)е∧(-5х) 10(6х+2)∧9*6=60(6х+2)∧9 -5*9- (6*(-7))=-45+42=-3 3*8*9+4*(-5)*(-1)+6*7*0- 6*8*(-1) -4*7*9-3*0*(-5)=216+20+48-252=32