NCERT Solution Class XI Mathematics Complex Numbers and Quadratic Equations Question 9 (Ex 5.3)

Question 9:

Answer

The equation can also the written as √2x2 + √2x + 1 = 0

On comparing this equation with ax2 + bx + c = 0, we obtain

a = √2, b = √2, and c = 1

∴ Discriminant (D) = b2 – 4ac = (√2)2 – 4 × (√2) × 1 = 2 – 4√2

Therefore, the required solutions are

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