1.  0

2.  1

3.  a-b

4.  none

View Answer  
4
Correct Answer :

a-b


Explanation :
No Explanation available for this question

In ΔABC, if cos A cos B +sin A sin B sin C =1, then a:b:c =

1.  1:1:1

2.  1:2:√2

3.  1:2:2

4.  1:1:√2

View Answer  
4
Correct Answer :

1:1:√2


Explanation :
No Explanation available for this question

If f: R→R defined by f(x)=x, if x>2 =5x-2, if x≤2, the nf is

1.  a function

2.  one one

3.  onto

4.  one one onto

View Answer  
4
Correct Answer :

onto


Explanation :
No Explanation available for this question

If f: [0, π]→[-1, 1] defined by f(x)=cos x, then f is

1.  a function

2.  one one

3.  onto

4.  one one onto

View Answer  
4
Correct Answer :

one one onto


Explanation :
No Explanation available for this question

If (0,1/2), (1/2,1/2), (1/2,0) are the midpoints of the sides of a triangle, then incentre of the triangle is

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

1.  1

2.  -1

3.  1/2

4.  2

View Answer  
4
Correct Answer :

1/2


Explanation :
No Explanation available for this question

In ΔABC, if sin A cos B =1/4 and 3tan A =tan B, the triangle is right angled at

1.  A

2.  B

3.  C

4.  not right angled

View Answer  
4
Correct Answer :

C


Explanation :
No Explanation available for this question

If f: R→R defined by f(x)=2x+5, if x>0 =3x-2, if x≤0, then f is

1.  function

2.  one one

3.  onto

4.  one one onto

View Answer  
4
Correct Answer :

one one


Explanation :
No Explanation available for this question

1.  0

2.  ∞

3.  -∞

4.  1

View Answer  
4
Correct Answer :

1


Explanation :
No Explanation available for this question

If f: R→(0, 1] is defined by f(x)= 1/x2+1, then f is

1.  a function

2.  one one

3.  onto

4.  one one onto

View Answer  
4
Correct Answer :

onto


Explanation :
No Explanation available for this question
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