Question

(vi) What is √n, if n is not a perfect square number ?
(A) Natural number
(B) Rational number
(C) Irrational number
(D) Options A, B, C all are correct.

(vii) Which of the following is not a surd ?
(A) √7
(B) 3√7
(C) 3√64
(D) √193

(viii) What is the order of the surd 3√✓5 ?
(A) 3 (B) 2 (C) 6 (D) 5

(ix) Which one is the conjugate pair of 2√5+ √3 ?
(A) -2√5+√3 (B)-2√5-√3
(C) 2√3 – √5 (D) √3 + 2√5

(x) The value of 12 - (13+7) x 4|is.
(A) -68
(B) 68
(C)-32
(D) 32.​

Answer 1

Answer:

1. C
2. D
3. B
4. D
5. A

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Answer 2

Answer:

The value of 12 - (13+7) x 4|is is -68