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Recent questions tagged quadratic equations
+1
vote
1
answer
Form the quadratic equation whose roots are: (i) √3 and 3√3
asked
Apr 7, 2019
in
Class 10
by
kratos
class-10
cbse
quadratic equations
+2
votes
1
answer
A train travels at a certain average speed for a distance of 63 km and then travels a distance of 72 km at an average speed of 6 km/h more
asked
Apr 7, 2019
in
Class 10
by
kratos
cbse
csat
time and distance
quadratic equations
class-10
+3
votes
0
answers
Distribute Rs. 632 amongst A, B and C in such a way that B will get 20 % more than A
asked
Apr 6, 2019
in
JEE
by
kratos
linear equations in one variable
number-system
class-8
money
jee
quadratic equations
class-10
optics
jee mains
class-5
+3
votes
1
answer
Find the reciprocal ratio of: (i) 5 : 8 (ii) x/3 ∶ y/7
asked
Apr 6, 2019
in
Mathematics
by
kratos
ratio and proportion
class-11
mathematical reasoning
quadratic equations
class-10
icse
sets
+3
votes
1
answer
An express train takes 1 hour less than a passenger train to travel 132 km between Mysore and Bangalore. If the average speed
asked
Apr 6, 2019
in
Class 10
by
kratos
class-10
quadratic equations
+2
votes
1
answer
If z **** on the circle |z - 1| = 1 then (z - 2)/ z equals
asked
Apr 6, 2019
in
JEE
by
kratos
class-11
jee
quadratic equations
jee mains
complex numbers
+1
vote
1
answer
If (x + iy)^3 = u + iv, then show that u/x + v/y = 4(x^2 – y^2)
asked
Apr 6, 2019
in
JEE
by
kratos
jee
quadratic equations
jee mains
complex number
class-12
+2
votes
1
answer
Find the values of k for roots are real and equal in equation: 4x^2 – 2(k + 1)x + (k + 4) = 0
asked
Apr 6, 2019
in
Class 10
by
kratos
class-10
quadratic equations
+2
votes
1
answer
A sailor goes 8 km downstream in 420 minutes and returns in 1 hour. Find the speed of the sailor in still water and the speed of the current .
asked
Apr 6, 2019
in
Class 10
by
kratos
cbse
pair of linear equations in two variables
class-8
times and speed
quadratic equations
class-10
time and speed
distance
+2
votes
1
answer
Define modulus of a complex number.
asked
Apr 6, 2019
in
JEE
by
kratos
class-11
jee
quadratic equations
jee mains
complex numbers
+2
votes
1
answer
If z and w are two complex numbers such that |zw| =1 and arg (z) – arg (w) = π/2 , then show that (Bar) z w = – i
asked
Apr 5, 2019
in
JEE
by
kratos
complex numbers and quadratic equation
class-11
jee
quadratic equations
jee mains
complex numbers
+3
votes
1
answer
In a flight of 600 km, an aircraft was slowed due to bad weather.
asked
Apr 5, 2019
in
Class 10
by
kratos
motion
class-8
quadratic equations
class-9
class-10
+2
votes
1
answer
Given that tan α and tan β are roots of x^2 – px + q = 0, then value of sin^2(α + β) =
asked
Apr 5, 2019
in
JEE
by
kratos
jee
quadratic equations
matrices
class-9
determinants
jee mains
+2
votes
1
answer
The hypotenuse of a right-angled triangle is 1 meter less than twice the shortest side. If the third side 1 meter more than the shortest side
asked
Apr 5, 2019
in
Class 10
by
kratos
class-8
quadratic equations
class-10
triangles
geometry
+1
vote
1
answer
Find the roots of 15x^2u200bu200bu200bu200bu200bu200bu200b -28 = x
asked
Apr 5, 2019
in
Class 10
by
kratos
class-10
cbse
quadratic equations
+2
votes
1
answer
Find the roots of 1/(x-2) + 2/(x-1) = 6/x
asked
Apr 5, 2019
in
Class 10
by
kratos
class-10
quadratic equations
+3
votes
1
answer
Determine whether the given values are solutions of the given equation or not: ax^2-3abx+2b^2=0,x=a/b and x=b/a
asked
Apr 5, 2019
in
Class 10
by
kratos
class-10
quadratic equations
+3
votes
1
answer
If x = 2/3 is a solution of the quadratic equation 7x^2 + mx – 3 = 0; find the value of m.
asked
Apr 5, 2019
in
Class 10
by
kratos
class-10
icse
quadratic equations
+2
votes
1
answer
Solve : (x^2 + 5x + 4) (x^2 + 5x + 6) = 120
asked
Apr 4, 2019
in
JEE
by
kratos
class-10
jee
jee mains
quadratic equations
+3
votes
1
answer
If one root of quadratic equation kx^2-4√5x +5 = 0 is √5 , then K = ______
asked
Apr 4, 2019
in
JEE
by
kratos
jee
quadratic equations
class-10
icse
jee mains
coordinate geometry
polynomials
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