Question

1.
Z każdego z poniższych wzorów wyznacz k.

D d = k / K - 1
E e = k - 1 / k + 1
G g = 2 - 1 / k
H h = ka² + k

Answer 1

Ad,d
d=k/k-1 /*k-1
d*k-1=k
d*k=k+1 /:d
k=k+1/d
ad.e
e=k-1/k+1 / *k+1
e*k+1=k-1
e*k=k /:e
k=k/e

ad.h
h = ka² + k
h-k=ka² /:k
-k=ka² /k (-1)
k=-ka²










ad.g
g = 2 - 1 / k /*k
g*k=2-1 /:g
k=2-1/g

Answer 2

D
d=k/k-1 /*k-1
d*k-1=k
d*k=k+1 /:d
k=k+1/d
e
e=k-1/k+1 / *k+1
e*k+1=k-1
e*k=k /:e
k=k/e
g
g = 2 - 1 / k /*k
g*k=2-1 /:g
k=2-1/g
h
h = ka² + k
h-k=ka² /:k
-k=ka² /k (-1)
k=-ka²