найти sin t + cos t, если sin t * cos t = 0.22

(sint+cost)²=sin²t+2sintcost+cos²t=2sintcost+1=2*0,22+1=1,44sint+cost=√1,44=1,2

sint*cost=0/22sint+cost=√(sint+cost)²=√(sin²t+cos²t+2sint*cost)=√(1+2*0,22)=√1,44sint+cost=-1,2 или  sint+cost=1,2