Przekształcanie wzorów : a) a= xk+yk k=? b) b=2k-ak k=? c) c=(k+1)b+2k d) d= k/k-1 k=? e) e= k-1/k+1 k=? f) f= k+1/k +a k=?

a= xk+yk k=? a=k(x+y) k=a/(x+y) b) b=2k-ak k=? b=k(2-a) k=b/(2-a) c) c=(k+1)b+2k c=kb+b+2k c-b=kb+2k c-b=k(b-2) k=(c-b)/(b-2) d) d= k/k-1 k=? d(k-1)=k dk-d=k -d=k-dk -d=k(1-d) k=-d/(1-d) e) e= k-1/k+1 k=? e(k+1)=k-1 ek+e=k-1 e+1=k-ek e+1=k(1-e) (e+1)/(1-e)=k f) f= k+1/k +a f(k+a)=k+1 fk+fa=k+1 f-1=k-fk f-1=k(1-f) k=(f-1)/(1-f)

a) a=xk+yk k=? xk+yk=a k(x+y)=a/:(x+y) k=a/x+y b) b=2k-ak k=? 2k-ak=b k(2-a)=b/:(2-a) k=b/2-a c) c=(k+1)b+2k k=? (k+1)b+2k=c bk+b+2k=c bk+2k=c-b k(b+2)=c-b/:(b+2) k=c-b/b+2 d) d=k/k-1 k=? d*(k-1)=k dk-d=k k=dk-d k-dk=-d k(1-d)=-d/:(1-d) k=-d/1-d e) e=k-1/k+1 k=? e=k-1/k+1/*(k+1) e(k+1)=k-1 ek+e=k-1 ek-k=-1-e k(e-1)=-1-e/:(e-1) k=-1-e/e-1 f) f=k+1/k+a k=? f=k+1/k+a/*k+a f(k+a)=k+1 fk+fa=k+1 fk-k=1-fa k(f-1)=1-fa/:(f-1) k=1-fa/:f-1