mc=c/2
c=2mc=2*15=30 см
hc=ab/2
ab=2hc=2*12=24 a=24/b
a^2+b^2=c^2=30^2=900
(24/b)^2+b^2=900
576/b^2 +b^2=900
576+(b^2)(b^2)=900b^2
b^4-900b^2+-576=0
b^2=x
x^2-900x+576=0
D=(-900)^2-4*1*576=810000-2304=807696
x1=(900-V807696)/2=(900-12V5609)/2=450-6V5609=0,64
x2=450+6V5609=899,36
b1=V0,64=0,8002
b2=V899,36=29,99
a1=24/0,8002=29,99
a2=24/29,99=0,8002
sin(a)=a/c=29,99/30=0,9997
sin(b)=b/c=0,8002/30=0,02667
