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Math MCQs-Short Questions of Algebra and Trigonometry

Math MCQs-Short Questions Of Algebra And Trigonometry

Math MCQs-Short Questions of Algebra and Trigonometry

1. √ 2 is a __________ number.

(a) Rational (b) irrational (c) Prime (d) None

2. Circumference of any circle = …………………….

Length of its diameter

(a) Л / 2 (b) – Л (c) Л (d) 2 Л

3. Л is a ………….

(a) Whole number (b) Natural number

(c) Rational Number (d) Irrational number

4. Modulus of complex number 3 – 4i is ……….

(a) 4 (b) – 5 (c) 5 (6) 0

5. Additive inverse of (a, b) is …………..

(a) (a,- b) (b) (- a, b) (c) (-a, -b) (d) None

6. Z – Z = ………………..

(a) Real number (b) Complex number

(c) 0 (d) -1

7. Z + Z = ……………….

(a) Real number (b) Complex number

(c) 0 (d) None

8. Z. Z = …………………….

(a) |Z| (b) |Z|2

9. The set {I, -1} posses closure property w.r.t………

(a) Addition (b) Subtraction

(c) Multiplication (d) None

10. 1in polar form can be written as……………

(a) Cos0 + i sin0 (b) Cos Л + i sin Л

(c) Cos π/2 + sinЛ/2 (d) None

11. Z = 1 + ί in Polar form can be written as……………..

_ _

(a) √2 (Cos Л/2 + i sin Л/2) (b) √2 (Cos Л /4 + i sin Л/4)

_

(c) √2 (Cos Л + i sine Л) (d) None

12. ί in polar form can be written as…………

(a) (Cos Л/2 + i sin Л/2) (b) Cos (-Л/2) + i sin (-Л/2)

(a) Cos Л + i sin Л (d) None

13. (-1)21/2

(a) -1 (b) +1 (c) ί (d) – ί

_

14. If x is not a perfect square then √x =……………

(a) Prime number (b) Retinol number

(c) Irrational number (d) None of these

(c) 0 (d) None

= ………………….

 

Math MCQs-Short Questions Of Algebra And Trigonometry

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