Z kazdego z poniższych wzorow wyznacz k. a) a=xk+yk b) b=2k-ak c) g=2-1/k d) i=a/2+2/k

a) a=xk+yk a = k(x+y) a/(x+y) = k b) b=2k-ak b = k(2-a) b/(2-a) = k c) g=2-1/k 2-g = 1/k 1/(2-g) = k d) i=a/2+2/k i- (a/2) = 2/k 2/(i- a/k) = k

a=k(x+y) a=k(x+y)|:(x+y) k=a/(x+y) b=k(2-a) b=k(2-a)|:(2-a) k=b/(2-a) g=2-1/k |*k gk=2k-1 gk-2k=-1 k(g-2)=-1|:(g-2) k=-1/(g-2) i=a/2+2/k|*k ik=ak/2+2 ik-ak/2=2 k(i+a/2)=2 k=2/(i+a/2)