Ask a New Question
Search
Questions and answers by
jha
Questions (13)
If the roots of the quadratic eqn x²+px+q=0 are tan 30° and tan 15° respectively, then the value of 2+q-p is-
1 answer
500 views
The quadratic eqn x²-6x+a=0 and x²-cx+6=0 have one root in common. The other roots of the first and second eqn are integers in
1 answer
516 views
Sachin and rahul attempted to slove a quadratic eqn. Sachin made a mistake in writing down the constant term and ended up it
1 answer
2,530 views
The values of 'a' for which the sum of yhe squares of the roots of the eqn x²-(a-2)x-a-1=0 assume the least value is-
0 answers
531 views
A man walks 40m north then 30 m east and then 40 n south. Find the displacement from the starting point?
3 answers
2,081 views
A vector of magnitude 30 and direction eastwards is added with another vector of magnitude 40 and direction northwards. Find the
2 answers
1,223 views
A vector A points vertically downward and vector B points towards east, then the vector product vector A × vectorB is
1 answer
862 views
Six forces 9.81 N each acting at a point are coplanar. If the angles between neighboring forces are equal then the resulant is:
2 answers
1,253 views
Let vector a and b be two non-null vectors such that |vector a +b| =|vector a-2b| then the values of |vector a| / |vector b| may
0 answers
1,232 views
Vector A is the length 2cm and 60° above the x-axis in the first quadrant. Vector B is of length 2cm and 60° below the x-axis
2 answers
1,060 views
Given: vector a+b+c= 0. Out of the three vectors a,b and c two are equal in magnitude. The magnitude of the third vector is √2
1 answer
591 views
A car is moving on a straight road due north with a uniform speed of 50km h^-1 when it turns left through 90°. It the speed
1 answer
682 views
a bag of marbles can be divided evenly among two, three, or four friends.
a) how many marbles might be in the bag b) what is the
16 answers
8,844 views
