CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

if the ordered pair (x,-1) and (5,y) belong to the set {(a,b):b=2a-3}, find the values of x and y

Posted by Chandragupt Maurya 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

.Ismat .Jamil 7 years, 11 months ago

b=2a-3; a=(b+3)/2 x=a=(-1+3)/2=1 y=b=10-3=7

0Thank You

ANSWER

Suppose that 6% of the people with blood group O are left handed and 10% of those with other blood groups are left handed 30% of the people have blood group O. If a left hander person is selected at random, what is the probability that he/she will have blood group O?

Posted by Vicky Vignesh 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Verify that the function y=c1e^ax.cosbx+c2e^ax.sinbx,where c1,c2 are arbitrary constants is a solution of the differential equation d2y/(dx^2)-2ady/(dx)+(a^2+b^2)y=0

Posted by Siddhant Singh 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find area of the region x²+y²=4&(x-2)²+y²=4using integration.

Posted by Raushan Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find dy/dx if y=esin2x{2tan-1√1-x/1+x

Posted by Amrita Sinha 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Two aeroplanes X and Y bomb a target in succession. There probabilities to hit correctly are 0.3 and 0.2 respectively. The second plane will bomb only if first miss the target. Find the probability that target is hit by Y plane.

Posted by Simoni Pati 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What will be the difficulty level of the Maths paper this year ( 2018 ) ??

Posted by Abhishek Bhardwaj 7 years, 11 months ago

CBSE > Class 12 > Mathematics

2 answers

Aditya Srivastava 7 years, 11 months ago

It wouldn't be a challenge If you have completed your ncert and solved last 10 year board paper then no one can stop you to gain 80 marks and if you need more then you have to go through exemplar questions

1Thank You

Akshay Singh 7 years, 11 months ago

It would be a challenge for the students

1Thank You

ANSWER

A dice is thrown two times. If A and B be the events, "same number each time" and "total score is 10 or more" respectively. Determine weather or not A and B are independent.

Posted by Ajeet Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

The side of an equilateral triangle is increasing at the rate of 2cm/sec. At what rate it's area increasing when the side of the triangle is 20cm.

Posted by Ajeet Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find the position vector of the foot of perpendicular and the perpendicular distance from the point P with position vector To Eye plus three G plus 4 care to the plane with RK or vector 2 i + 3 + 3 - 26 = 0 also find the image of tea in the plane

Posted by Saurabh Pandey 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

The population of a village increases continuously at the rate proportional to the number of its inhabitants present at any time.If the population of the village was 20,000 in 1999 and 25000 in the year 2004, what will be the population if the village in 2009?

Posted by Geeta Negi 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

In your point of, is date sheet schedule perfect

Posted by Kajal Bhardwaj 7 years, 11 months ago

CBSE > Class 12 > Mathematics

4 answers

Kajal Bhardwaj 7 years, 11 months ago

Divya u r right, we r lucky in this case

0Thank You

Siddharth Handsome 7 years, 11 months ago

I don't think it's perfect. A complete injustice with humanities students especially the one with maths also.

1Thank You

Sahil Rana 7 years, 11 months ago

Yes because for maths paper we have 7 days for preparation ????

2Thank You

Mimansha Rawat 7 years, 11 months ago

Yes

1Thank You

ANSWER

Prove that the volume of the largest cone that can be inscribed in a sphere of radius R is8/27 of the volume of the sphere

Posted by Anchal Negi 7 years, 11 months ago

CBSE > Class 12 > Mathematics

2 answers

Aastha Agarwal 7 years, 11 months ago

Its an ncert question . Go through excercise 6.5 ncert solution question no. 23 .

1Thank You

Nara Amaresh Chaudhary 7 years, 11 months ago

‌

3Thank You

ANSWER

Cosx/2 integral by (by parts method)

Posted by Ritik Jain 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Matirx

Posted by Shashi Vishwakarma 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Log0=?

Posted by Rupal Parjapati 7 years, 11 months ago

CBSE > Class 12 > Mathematics

3 answers

Rupal Parjapati 7 years, 11 months ago

As log 1=0 not, log0=1

0Thank You

Md Kashif 7 years, 11 months ago

Log0=1

1Thank You

Ektaaa Singh 7 years, 11 months ago

1Thank You

ANSWER

Is there is no supplymentery in maths in this app

Posted by Shivam Gupta 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Soujanya Sobarad 7 years, 11 months ago

0Thank You

ANSWER

Blue print of maths

Posted by Navneet Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Differentiate tan ^-1 (6x / 1- 9x^2 )

Posted by Yuvika Kumari 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Shivam Gupta 7 years, 11 months ago

Multiply and divide by 3 and then let 9x'2 is equal to the

2Thank You

ANSWER

two motor car start with same velocity v km from distance a km and b km from a junction of two road inclined at 90 and travel towards the junction. prove that after 2h they are nearing each other at the rate of.

Posted by H Majhi 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

A and b are 2 e

Posted by Sahin Yadav 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Matrices questions

Posted by Srishti Solanki 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

if the lines x-1/-3,y-2/-2k,z-3/2 and x-1/k,y-2/1,z-3/5 are perpendicular find value of k and hence find the equation of plane containing these lines

Posted by Kavya Parouha 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate dx/x(x^6+1)

Posted by Samarth Narula 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Md Kashif 7 years, 11 months ago

Put x^2 =t

0Thank You

ANSWER

I can't solve integration easily

Posted by Priyansh Dubey 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Differentiation of "e cosx "

Posted by Shivakumar Khot 7 years, 11 months ago

CBSE > Class 12 > Mathematics

1 answers

Varun Narang 7 years, 11 months ago

- e sinx

0Thank You

ANSWER

Show that the function f:R->R given by f(x)=3power of x is injective.

Posted by Bajrang Negi 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate

Posted by Kunal Birhman 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find(ex(tan+1) sec dn

Posted by Kunal Birhman 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

f:[0,infinity] f(x)=9x^2+6x-5 .show f is not invertible and modify codomain and find f^-1

Posted by Ratan Ojha 7 years, 11 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Page 387 of 481

myCBSEguide

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers