Question

The roots of the equation

$P(x)$ are equal, then.

• A. ≤ 2
• B. P(0) = 0,
• C. P(1) = 1
• D. P'(x) > 0 ∀ x ∈ (0,1)

Answer 1

Answer: (D)

P'(x) > 0 ∀ x ∈ (0,1)

Answer 2

Accordingly,

$- \frac{3}{2}$

⇒ $4 a ^ { 2 } c ^ { 2 } + 4 b ^ { 2 } d ^ { 2 } + 8 a b c d = 4 a ^ { 2 } c ^ { 2 } + 4 a ^ { 2 } d ^ { 2 }$ $x^{2} + bx - c = 0$

⇒ $b$

⇒ $c$.