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Recent questions tagged ncert class 10 maths
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A lot contains 20 articles. The probability that the lot contains exactly two defective articles is 0.4;
asked
Apr 7, 2019
in
Mathematics
by
kratos
jee
probability
ncert class 10 maths
class-10
jee mains
class-12
+2
votes
1
answer
In ΔPQR, right-angled at Q, PR+QR=25cm and PQ =5 cm.Determine the values of sin P, cos P and tan P.
asked
Apr 4, 2019
in
Mathematics
by
kratos
trigonometry
class-10
ncert class 10 maths
cbse
+2
votes
1
answer
D and,E are points on the sides CA and CB respectively of a triangle ABC right angled at C. prove that AE^2 + BD^2 = AB^2 +DE^2 .
asked
Apr 4, 2019
in
Mathematics
by
kratos
pythagoras theorem
cbse
ncert class 10 maths
class-10
triangles
+3
votes
1
answer
Find the values of α and β for which the following pair of linear equations has infinite number of solutions :2x + 3y = 7 ;
asked
Apr 2, 2019
in
Mathematics
by
kratos
cbse
cross - multiplication method
pair of linear equations in two variables
ncert class 10 maths
class-10
+1
vote
1
answer
In a right triangle ABC, right angled at C. P and Q are points of the sides CA and. CB respectively, which divide these sides in the ratio 2 : 1.
asked
Apr 2, 2019
in
Mathematics
by
kratos
pythagoras theorem
cbse
class-8
ncert class 10 maths
class-10
triangles
+3
votes
1
answer
If n>2, then show that n^5-5n^3+4n is divisible by 120.
asked
Apr 2, 2019
in
Mathematics
by
kratos
class-10
arithmetic progression
ncert class 10 maths
cbse
+3
votes
0
answers
Draw the graphs of the equations x – y + 1 =0 and 3x + 2y – 12 = 0.
asked
Apr 1, 2019
in
Mathematics
by
kratos
pair of linear equations in two variables
class-10
ncert class 10 maths
cbse
+2
votes
1
answer
If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms.
asked
Mar 31, 2019
in
Mathematics
by
kratos
cbse
arithmetic progression
ncert class 10 maths
class-10
icse
+2
votes
1
answer
lf two zeroes of the polynomial p(x) = x^4 - 6x^3 - 26x^2 + 138x - 35 are 2 ± √3. find the other zeroes.
asked
Mar 31, 2019
in
Mathematics
by
kratos
class-10
polynomials
ncert class 10 maths
cbse
+2
votes
1
answer
For what value of n, the nth terms of the sequences 3, 10, 17,... and 63, 65, 67,... are equal.
asked
Mar 31, 2019
in
Mathematics
by
kratos
cbse
arithmetic progression
circles
ncert class 10 maths
class-10
+1
vote
1
answer
Find the ratio in which the line segment joining A(1, – 5) and B(– 4, 5) is divided by the x-axis. Also find the coordinates of the point of division.
asked
Mar 29, 2019
in
Mathematics
by
kratos
coordinate geometry
class-10
ncert class 10 maths
cbse
+3
votes
1
answer
Find the 31st term of an AP whose 11th term is 38 and 16th term is 73.
asked
Mar 29, 2019
in
Mathematics
by
kratos
cbse
arithmetic progression
ncert class 10 maths
harmonic progression
class-10
+3
votes
1
answer
In a triangle ▲ ABC, ∠C = 3 ∠B = 2 ( ∠ A + ∠ B). Find the three angles.
asked
Mar 28, 2019
in
Mathematics
by
kratos
pythagoras theorem
cbse
ncert class 10 maths
class-10
triangles
rmo
+3
votes
1
answer
If sum of the zeroes of the quadratic polynomial 3x^2 - kx + 6 is 3, then find the value of k.
asked
Mar 28, 2019
in
Mathematics
by
kratos
class-10
polynomials
ncert class 10 maths
cbse
+1
vote
0
answers
How many multiples of 4 lie between 10 and 250?
asked
Mar 28, 2019
in
Mathematics
by
kratos
class-10
arithmetic progression
ncert class 10 maths
cbse
+3
votes
1
answer
Find the 20th term from the last term of the AP: 3, 8, 13, ...., 253.
asked
Mar 26, 2019
in
Mathematics
by
kratos
cbse
arithmetic progression
circles
ncert class 10 maths
class-10
+3
votes
1
answer
What is the 5th term form the end of the AP 2, 7, 12, …., 47?
asked
Mar 25, 2019
in
Mathematics
by
kratos
class-10
arithmetic progression
ncert class 10 maths
cbse
+2
votes
1
answer
ABCD is a rectangle formed by joining the points A (—1, —1), B (—1, 4), C (5, 4) and D (5, −1).
asked
Mar 24, 2019
in
Mathematics
by
kratos
cbse
ncert class 10 maths
class-9
class-10
coordinate geometry
+1
vote
1
answer
Use Euclid’* Division lemma to show that the square of any positive integer is either of the form 3m, 3m+1 for some integer m.
asked
Mar 24, 2019
in
Mathematics
by
kratos
cbse
class-10
real numbers
ncert class 10 maths
+2
votes
1
answer
A 1.5 m tall boy is standing at some distance from a 30 m tall building.
asked
Mar 24, 2019
in
Mathematics
by
kratos
heights and distances
applications of trigonometry
cbse
trigonometry
ncert class 10 maths
class-10
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