Let a, ß be the roots of x² + 2ax + b =0.......[1]
⇒a + ß = -2a and aß = b
By hypothesis
la-ß | ≤ 2m
⇒ (a-ß)² ≤ 4m²
⇒ (a+ß)²-4aß < 4m²
⇒ 4a²-4b ≤ 4m²
⇒a² - b ≤ m²......(2)
And discriminant of (1) is >0
⇒4a²-4b> 0
⇒ b <a²...... (3)
From (2) and (3)
a² > b≥ (a² - m²)
b = [a² - m², a²)
Correct.
PB is twice that of PA
So QC must be twice that of QA
The triangles are similar triangles.
Answer: The graph decreases, then increases. c.The graph remains constant. d.The graph increases, then decreases.
Step-by-step explanation:
Answer:
math.way is great for this
Step-by-step explanation:
i hope that helps
Answer: 6.4008
Step-by-step explanation:You can use the Calculator EX clap.
