4t в 4 степени -7 t в квадрате+3=0

4t^4 - 7t^2 + 3 = 0t^2 выразим через t4t^2 - 7t + 3 = 0D = 49 - 48 = 1t^2(1), t^2(2) = (7±1)/2t^2(1) = 4t^2(2) = 3t1 = √4 = 2t2 = √3

t²=a4a²-7a+3=0D=(-7)²-4*4*3=49-48=1=√1=1a1=(-(-7)+1)/2*4=8/8=1a2=(-(-7)-1)/8=6/8=3/4t²=a1=1t1=1t2=-1t²=a2=3/4t1=√3/2t2=-√3/2