Step-by-step explanation:
the question is z²=1
taking square root on both sides
√z² = √1
the square root and the square cancel out each other
it gives
z=±1
that means either z=+1 or z=-1
so the solutions are 1 and -1
Answer:
you need to divide 1.2925 by 0.7925=1.630914826498423 or a abrebiation
Step-by-step explanation:
Ok because what does this even mean
Answer:

Step-by-step explanation:
The equations are


Substituting the first equation in the second we get





So, the required values are 