# If sin α+ cosec α=2, then sinn α+ cosecn α=

1.  3

2.  2

3.  1

4.  0

4

2

Explanation :
No Explanation available for this question

# If tan2 θ= 1-e2,then sec θ+ tan3 θ cosec θ=

1.  (2+e2)3/2

2.  (1+e2)3/2

3.  (2-e2)3/2

4.  (1-e2)3/2

4

(2-e2)3/2

Explanation :
No Explanation available for this question

# If cos x+ cos2x=1, then sin12x+ 3sin10x+ 3sin8x+ sin6x=

1.  0

2.  √2

3.  1

4.  2

4

1

Explanation :
No Explanation available for this question

# If sin θ, cos θare the roots of the equation ax2-bx+c=0, then the relation among a,b,c is

1.  a2-b2+2ac=0

2.  a2+b2-2ac=0

3.  a2-b2-2ac=0

4.  a2+b2+2ac=0

4

a2-b2+2ac=0

Explanation :
No Explanation available for this question

# If k=(1+sin A)(1+sinB)(1+sin C)=(1-sinA)(1-sin B)(1-sin C) then k=

1.  ± sin Asin Bsin C

2.  ± cos A cos B cos C

3.  1

4.  0

4

± cos A cos B cos C

Explanation :
No Explanation available for this question

# If k=(sec A+tan A)(sec B+tan B)(sec C+tan c)=(sec A-tan A)(sec B-tan B)(sec c-tan C) then k=

1.  0

2.  ± 1

3.  ± 3

4.  ± 4

4

± 1

Explanation :
No Explanation available for this question

# If sec θ=a+1/4a then sec θ + tan θ=

1.  a

2.  2a

3.  3a

4.  4a

4

2a

Explanation :
No Explanation available for this question

# If cosec θ=p+1/4p,then cosec θ+ cot θ

1.  2p

2.  3p

3.  4p

4.  5p

4

2p

Explanation :
No Explanation available for this question

# If cosec2 θ= 4xy/(x+y)2 then

1.  x=y

2.  x=-y

3.  y=1/x

4.  none

4

x=y

Explanation :
No Explanation available for this question

1.  c2

2.  2c2

3.  3c2

4.  4c2

4