WBJEE Maths Test - 14 - JEE MCQ

equal

equal but of opposite signs

reciprocal of each other

none of these

2 and 9

3 and 2

2/3 and 9

3/2 and 6

[(2n!)/(n!)²]

[(2n+2)!/{(n+1)!}²]

[(2n+2)!/{n!(n+1)!}]

[(2n)!/{n!(n+1)!}]

(a, 2a)

(2a, a)

(-a, 4a)

(2a, 3a)

(-1,2)

(-1,1)

(-1,-2)

(1,1)

e /2

e − 1/  2

e /2 − 1

e − 3/  2

ω

1

ω 2

0

4

8

12

16

-1

0

1

2

1

3

4

1

- 1

0

2

1

3

5

-1

y sec x tan x = c

y sec x = tan x + c

y tan x = secx + c

y tan x = sec x tan x + c

0

1

2

3

1

2

3

4

2/5

4/5

1/3

1/5

$\frac{1}{4}$

$\frac{1}{3}$

$\frac{1}{2}$

$\frac{2}{3}$

a²l² - b²m² = n²

a²l² + m² = n²b²

a² + b² = n²(l²+ m²)

a²l² + b²m² = n²

c = 0

only one real root

only two real roots

no real root

none of these

π/2

π/3

π/4

π/6

0

1

log(a b)

log a /log b

singular

non-singular

symmetric

not defined

-2

0

2

1

z₁=z₂

z₁̅ =z₂

z₁+z₂=0

z₁̅=z₂̅

y=x-3a and y=-2x+12a

y=2x+12a and y=x+3a

y=-3x+33a and y=x+2a

y=x+3a and y=3x+12a

c=-am

c=-a/m

c=-am²

c=a/m²

90000

100000

30240

69760