#### 11th Standard Maths English Medium Free Online Test Creative 1 Mark Questions - Part Four

11th Standard

Reg.No. :
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Maths

Time : 00:10:00 Hrs
Total Marks : 10

10 x 1 = 10
1. If tanx=$\frac { -1 }{ \sqrt { 5 } }$ and x lies in the IV quadrant, then the value of cosx is

(a)

$\sqrt { \frac { 5 }{ 6 } }$

(b)

$\frac { 2 }{ \sqrt { 6 } }$

(c)

$\frac { 1 }{ 2 }$

(d)

$\frac { 1 }{ \sqrt { 6 } }$

2. cos350+cos850+cos1550=

(a)

0

(b)

$\frac { 1 }{ \sqrt { 3 } }$

(c)

$\frac { 1 }{ \sqrt { 2 } }$

(d)

cos 2750

3. The value of sin 20° sin40° sin60° sin18° is

(a)

$\frac{-3}{16}$

(b)

$\frac{3}{16}$

(c)

$\frac{5}{16}$

(d)

$\frac{-5}{16}$

4. If (A+B)=$\frac{\pi}{4}$, (cot A-1)(cot B-1)=

(a)

0

(b)

-2

(c)

2

(d)

1

5. The value of tan-1 (1)+cos-1($\frac{-1}{2}$)+sin-1($\frac{-1}{2}$)

(a)

$\frac{\pi}{4}$

(b)

$\frac{5\pi}{4}$

(c)

$\frac{3\pi}{4}$

(d)

$\frac{\pi}{2}$

6. $\frac { sin{ 10 }^{ o }-cos{ 10 }^{ o } }{ { cos }^{ o }+{ sin }10^{ o } }$is

(a)

tan 35o

(b)

$\sqrt{3}$

(c)

tan 75o

(d)

1

7. The number of ways to average the letters of the word CHEESE are

(a)

120

(b)

240

(c)

720

(d)

6

8. If nPr = 720, nCr =120 then r is:

(a)

2

(b)

4

(c)

3

(d)

5

9. The number of ways in which we can arrange 4 letters of the word "MATHEMATICS" is given by

(a)

136

(b)

2454

(c)

1680

(d)

192

10. How many arrangements can be made out of letters of words "ENGINEERING"

(a)

11!

(b)

${{11!}\over{{(3!)}^{2}{(2!)}^{2}}}$

(c)

${{11!}\over{3!2!}}$

(d)

${{11!}\over{3!}}$