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Quiz-3

Total questions: 15

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

If 424242...=x\sqrt{42-\sqrt{42-\sqrt{42-...\infty}}}=x then x=x= ________. 

a)

x=6 and x=7x=6\ and\ x=7  

b)

x=6 and x=7x=-6\ and\ x=7  

c)

x=7 and x=6x=-7\ and\ x=6  

d)

x=7 and x=6x=-7\ and\ x=-6  

2.

If xx12\frac{1}{2}  ,then root of the equation x+11+11+1xx+\frac{1}{1+\frac{1}{1+\frac{1}{x}}}  is ________.

a)

25:62-5:6  

b)

1+1:41+1:4  

c)

76\frac{7}{6}  

d)

54\frac{5}{4}  

3.

The value of  000^0  is same as of  π(00)\pi\left(\frac{0}{0}\right) .What is the value of the equation then?

(a)  

4.

If

logaa=c\log_a^a=c

then for c=bNc=b^N ,

N inlogc =?N\ in\log_{ }c\ =?

a)

0

b)

1

c)

-1

d)

Other

5.

Write how you will solve for x, if

x1x(2)=21x+2x-\frac{1}{\left|x-\left(-2\right)\right|}=2-\frac{1}{\left|x+2\right|}  

(a)  

6.

7\sqrt{7}  When the number is squared conclusion is________.

a)

7\sqrt{7}  7\cdot\ \sqrt{7} = 7=\ \sqrt{7}  

b)

7\sqrt{7}  7\cdot\ \sqrt{7} =7=7  

7.

2(32+2)(32+2)2\left(\sqrt{\frac{3}{2}+\sqrt{2}}\right)-\left(\frac{3}{2}+\sqrt{2}\right) This expression when simplified reduces to

a)

Irrational Number

b)

Whole number which is positive integer

c)

A rational that is not a integer

d)

Negative Recurring Decimal

8.

(x+2)+(2+x)(2+x)(2x)\frac{\left(\sqrt{x+2}\right)+\left(\sqrt{2+x}\right)}{\left(\sqrt{2+x}\right)-\left(\sqrt{2-x}\right)} Evalute

(a)  

9.

261535238+53\frac{\sqrt{26-15\sqrt{3}}}{5\sqrt{2}-\sqrt{38+5\sqrt{3}}}  Simplify.

a)

13\frac{1}{\sqrt{3}}  

b)

(3)1\left(\sqrt{3}\right)^{-1}  

c)

3\sqrt{3}  

d)

(33)3×13\frac{\left(\sqrt{3}\cdot\sqrt{3}\right)}{3}\times\frac{1}{\sqrt{3}}  

10.

 3+3+87+43\sqrt{-\sqrt{3}+\sqrt{3+8\sqrt{7+4\sqrt{3}}}}  

a)

 22  

b)

 2-2  

c)

 ±2±2  

d)

 2-\sqrt{2}  

e)

 2\sqrt{2}  

11.

If axy=byz=cxz\frac{a}{x-y}=\frac{b}{y-z}=\frac{c}{x-z} then a+b+c =m°a+b+c\ =m\degree Find the value of cos(m°)sin(m°)tan(m°)\cos\left(m\degree\right)-\sin\left(m\degree\right)-\tan\left(m\degree\right)  

a)

00  

b)

11  

c)

1-1  

d)

±1\pm1  

12.

Find xx if 2(4)132(413)2(413)=x\sqrt{2\cdot\left(4\right)^{\frac{1}{3}}\sqrt{2\cdot\left(4^{\frac{1}{3}}\right)}\sqrt{2\cdot\left(4^{\frac{1}{3}}\right)\ldots\infty}}=x  

a)

4

b)

6

c)

2

d)

5

13.

 x+z=2y, 2z+x=30 & x+z+2y=3z.x+z=2y,\ 2z+x=30\ \&\ x+z+2y=3z.  Then find  x+y+zx+y+z  

a)

 1515  

b)

 452\frac{45}{2}  

c)

 30 : 2π30\ :\ \frac{2}{\pi}  

d)

 4545  

14.

36+11(zy3+x)12(zy3+x)2+(4z4y3+4x9)(5+3zy+2x)36+11\left(z-\frac{y}{3}+x\right)-12\left(z-\frac{y}{3}+x\right)^2+\left(4z-\frac{4y}{3}+4x-9\right)\left(5+3z-y+2x\right)  Find the Binomial - Polynomial Factor of the expression.

a)

(x+1)(4z43y+4x9)\left(x+1\right)\left(4z-\frac{4}{3}y+4x-9\right)  

b)

(1x)(4z43y+4x9)\left(1-x\right)\left(4z-\frac{4}{3}y+4x-9\right)  

c)

(1+x)(9+4x4z+4y3)\left(1+x\right)\left(-9+4x-4z+\frac{4y}{3}\right)  

d)

(x1)(4z43y9+4x)\left(x-1\right)\left(4z-\frac{4}{3y}-9+4x\right)  

15.

If sum of the two roots (α,β)\left(\alpha,\beta\right) of quadratic equation (ax2+bx+c=0)\left(ax^2+bx+c=0\right) is sinθ+cosθ\sin\theta+\cos\theta , then which of the following is true?

a)

a22ac=2c2b2a^2-2ac=2c^2-b^2

b)

b2+c2=(a+c)2b^2+c^2=\left(a+c\right)^2

c)

(αβ)2+(αβ)2=(a+c)2a2\left(-\alpha-\beta\right)^2+\left(\alpha\beta\right)^2=\frac{\left(a+c\right)^2}{a^2}

d)

sin2θ+cos2θ+2sinθcosθ=1+2sinθcosθ\sin^2\theta+\cos^2\theta+2\sin\theta\cos\theta=1+2\sin\theta\cos\theta