10th Class Math Chapter 1 MCQs fbise
Math Class 10 New Book Federal Board Chapter 1 MCQs

10th Class Math Chapter 1 MCQs fbise Solution

10th Class Math Chapter 1 MCQs fbise Solution

10th Class Math Chapter 1 MCQs fbise Solved Questions

Tick the correct option.

(i)

$$\sqrt{-1}\;is\;equal\;to:$$

$$a)\;1\\(b)\;-1\\(c)\;i\\(d)\;-i$$

Correct option is (c)

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(ii)

$$If\;x<0,\;then\;\sqrt x\;is:$$

(a) Real

(b) Complex

(c) Irrational

(d) Rational

Correct option is (b)

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(iii)

$$Conjugate\;of\;\sqrt x\;-i\sqrt y\;is:$$

$$a)\;\sqrt x+i\sqrt y\\(b)\;x-iy\\(c)\;x-y\\(d)\;x+iy$$

Correct option is (a)

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(iv)

$$If\;z=x+iy,\;then\;z\overline z\;is:$$

(a) imaginary

(b) Complex

(c) Non-negative number

(d) Negative number

Correct option is (c)

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(v)

$$\sqrt{25}+\sqrt[3]8\;is\;equal\;to:$$

$$(a)\;-5+\sqrt8\\(b)\;2+5i\\(c)\;-5+2i\\(d)\;2\sqrt2+5i$$

Correct option is (b)

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(vi)

$$1+{(\;-i\;)}^9=?$$

$$(a)\;1+i\\(b)\;1+\sqrt{-1}\\(c)\;1-i\\(d)\;-i$$

Correct option is (c)

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(vii)

$$\frac2{1-i}=?$$

$$(a)\;\frac{1+i}2\\(b)\;\frac{{(1+i)}^2}2\\(c)\;1-i\\(d)\;1+i$$

Correct option is (d)

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(viii)

$${(\;-xi\;)}^{19}=?$$

$$(a)\;-x^{19}i\\(b)\;x^{19}i\\(c)\;-i^{19}\\(d)\;-x^{19}$$

Correct option is (b)

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(ix)

$$If\;z=3+4i,\;then\;\left|z\right|^2\;is:$$

$$(a)\;5\\(b)\;\sqrt5\\(c)\;25\\(d)\;16$$

Correct option is (c)

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(x)

$$The\;solution\;of\;x^2+4=0\;is:$$

$$(a)\;2i\\(b)\;-2i\\(c)\;\pm2\\(d)\;\pm2i$$

Correct option is (d)

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