Answer:
a
Step-by-step explanation:
In the second one I'm pretty sure you just measure the length of the points.
Answer:
您能再解釋一下嗎,謝謝
Step-by-step explanation:
X² - 64 = 0
(x - 8)(x + 8) = 0
x = - 8, 8
Your other solution is - 8
Answer with Step-by-step explanation:
a.

Taking both sides log

Using identity:

Using identity:


b.
We know that

Using identity

c.

Substitute the values then we get

By using 
Hence, 