Answer:
4. 1/2
5. 9/1
Step-by-step explanation:
4. 2/4 simplifies to 1/2
5. 18/2 simplifies to 9/1
Cos 45=7 under root 2 /AB
1 / Under root 2 = 7 under root 2 / AB
AB=14
Ans = 14(b)
X^2 - 4x + 2
d = b^2 - 4ac, where a = 1, b = -4 and c = 2
d = (-4)^2 - 4 x 1 x 2
d = 16 - 8
d = 8
Answer:

Step-by-step explanation:
using the rule of exponents
⇔ 
f(- 5) =
=
= 