If we divide x2a – 1 by xa – 1 we get …………….. A) x –

1.	If we divide x2a – 1 by xa – 1 we get …………….. A) x – 1 B) xa – 1C) x + a D) xa + 1
Answer» Correct option is D) x^a + 1 Correct option is (D) x^a + 1 \(\frac{x^{2a}–1}{x^a–1}=\frac{(x^a)^2–1^2}{x^a–1}=\frac{(x^a-1)(x^a+1)}{x^a–1}\) = \(x^a+1\)

If we divide x2a – 1 by xa – 1 we get …………….. A) x – 1 B) xa – 1C) x + a D) xa + 1

Answer»

Correct option is D) x^a + 1

Correct option is (D) x^a + 1

\(\frac{x^{2a}–1}{x^a–1}=\frac{(x^a)^2–1^2}{x^a–1}=\frac{(x^a-1)(x^a+1)}{x^a–1}\)

= \(x^a+1\)