Q.   1

A

B

C

D

Q.   2

A

B

C

D

Q.   3

cosh x + 1

cosh x – 1

2 cosh x – 1

2( cosh x –1)

Q.   4

A

B

C

D

Q.   5

cosh (x – y) is equal to -

cosh x cosh y – sinh x sinh y

cosh x cosh y + sinh x sinh y

cosh x sinh y – sinh x cosh y

cosh x sinh y + sinh x cosh y

Q.   6

cosh (x+y) equals -

cosh x cosh y – sinh x sinh y

cosh x cosh y + sinh x sinh y

cosh x sinh y – sinh x cosh y

None of these

Q.   7

A

B

C

D

Q.   8

A

B

C

D

Q.   9

A

B

C

D

Q.   10

A

B

C

D

Q.   11

A

B

C

D

Q.   12

A

B

C

D

Q.   13

2 sinh (x+y) sinh (x–y) equals -

cosh 2y – cosh 2x

sinh 2x – sinh 2y

cosh 2x + cosh 2y

cosh 2x – cosh 2y

Q.   14

A

B

C

D

Q.   15

A

B

C

D

Q.   16

coth x

tanh x

cosech x

sinh x

Q.   17

Which one is not defined at x = 0

sinh x

sech x

cosech x

tanh x

Q.   18

A

B

C

D

Q.   19

0

1

– 1

i

Q.   20

cot (ix) is equal to -

coth x

– coth x

i coth x

– i coth x

Q.   21

cosech (iz) equals -

cosec z

– cosec z

– cosech z

cosech z

Q.   22

– 2

2

– 2i

2i

Q.   23

1

1 + i

i

0

Q.   24

A

B

C

D

Q.   25

sinh x equals -

i sin (ix)

– i sin x

– i sin (ix)

i sin x

Q.   26

cosec (ix) is equal to -

cosech x

i cosech x

i cosec x

– i cosech x

Q.   27

tanh (ix) is equal to -

– i tan ix

i tan x

– i tan x

None of these

Q.   28

A

B

C

D

Q.   29

sech (ix) is equal to -

sec x

i sech x

sec (ix)

i sec (ix)

Q.   30

A

B

C

D

Q.   31

A

B

C

D

Q.   32

i

– i

1

–1

Q.   33

0

1

–1

i

Q.   34

A

B

C

D

Q.   35

A

B

C

D

Q.   36

A

B

C

D

Q.   37

A

B

C

D

Q.   38

A

B

C

D

Q.   39

A

B

C

D

Q.   40

A

B

C

D

Q.   41

log cot (x/2)

log tan (x/2)

log cot x

None of these

Q.   42

A

B

C

D

Q.   43

A

B

C

D

Q.   44

A

B

C

D

Q.   45

A

B

C

D

Q.   46

A

B

C

D

Q.   47

A

B

C

D

Q.   48

A

B

C

D

Q.   49

log (tanx + sec x)

log (sec x – tan x)

log (sec x + sin x)

log (sec x – sin x)

Q.   50

A

B

C

D