Mathematics - Online Test

Q1. The point which divides the joint of ( 1, 2 ) and ( 3,4 ) externally in the ratio 1 : 1 .
Answer : Option B
Explaination / Solution:

The point which divides the line in the ratio m:n externally is given by x =

Substituting the values we get,

x =  which is undefined.

 


Q2. Which of the following is a preposition?
Answer : Option A
Explaination / Solution:

It is a false statement other options are open sentences

Q3. The function  is
Answer : Option B
Explaination / Solution:



Q4. Vector has
Answer : Option C
Explaination / Solution:

A vector has both magnitude as well as direction.

Q5. A coin is tossed three times, if E : head on third toss , F : heads on first two tosses. Find P(E|F)
Answer : Option B
Explaination / Solution:



Q6.
The value of 
 
is

Answer : Option D
Explaination / Solution:




Q7.  is equal to
Answer : Option C
Explaination / Solution:

  
Q8. Let P(n)P be a statement and let P(n)⇒P(n+1) for all natural numbers n , then what will the nature of P(n) ?
Answer : Option D
Explaination / Solution:

Since the statement is conditional statement ( if....then).

Q9. Let  be a statement  , where n is a natural number , then  is true for
Answer : Option C
Explaination / Solution:

Since for example n = 4 will give LHS as 16 and RHS as 4! = 1.2.3.4= 24

Q10. With K as a constant, the possible solution for the first order differential equation  is
Answer : Option A
Explaination / Solution: