1 .
ABC is a triangle. It is given that a + c > $90^o$, then b is

image
A.  Greater than $90^o$
B.  Less than $90^o$
C.  Equal to $90^o$
D.  Cannot be said
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2 .
If the sides AB and AC are equal in ABC and L, M and N are midpoints of the sides BC, CA and AB respectively, then the figure AMLN is a
A.  Rhombus
B.  Parallelogram
C.  Square
D.  Rectangle
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3 .
The expression $1 \over tan3A - tanA$ - $1 \over cot3A - cotA$ is
A.  cot 2A
B.  tan 2A
C.  cot 3A
D.  tan 3A
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4 .
If cosec $\theta$ = x + $1 \over 4x$ then the value of cosec $\theta$ + cot $\theta$ is
A.  2x
B.  - 2x
C.  $1 \over \sqrt {2x}$
D.  $1 \over \sqrt {3x}$
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5 .
The value of the expression 2($sin^6$ $\theta$ + $cos^6$ $\theta$) - 3 ($sin^4$ $\theta$ + $cos^4$ $\theta$) + 1 is
A.  1
B.  - 1
C.  0
D.  2
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6 .
The value of $cos^2$ image is
A.  0
B.  1
C.  2
D.  3
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7 .
The value of sin$ 36^o$.sin $72^o$.sin $108^o$.sin $144^o$ is
A.  0
B.  $3 \over 16$
C.  $1 \over 16$
D.  $5 \over 16$
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8 .
The value of sin $47^o$+ sin$ 61^o$- sin $11^o$- sin $25^o$ is
A.  cos $7^o$
B.  cos $18^o$
C.  sin $18^o$
D.  cos $15^o$
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9 .
If cosec $\theta$ + cot $\theta$ = $11 \over 2$, then the value of tan$\theta$ is
A.  $17 \over 117$
B.  $44 \over 117$
C.  $13 \over 117$
D.  $22 \over 117$
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10 .
The sum of twenty consecutive even numbers is 980. Then find the greatest number
A.  66
B.  72
C.  68
D.  90
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