Answer:
x² - 20 = 0
Using the quadratic formula

a = 1 b = 0 c = -20
So we have

Hope this helps you.
Let the required equation be y = mx + c; where y = 1, m = f'(0), x = 0
f(a) = sec(a)
f'(a) = sec(a)tan(a)
f'(0) = sec(0)tan(0) = 0
y = mx + c
1 = 0(0) + c
c = 1
Therefore, required equation is
y = 1.
(c/ b * 0) is just (c/0) and you cannot divide by 0
The correct answer is -78.15 m.
Hope this helped! :)
97.45 • 0.18 = 17.54. 97.45 + 17.54 = 114.99. I think this is right.