CBSE > Class 11 > Mathematics | CBSE Board | Homework Help

Just point the points in graph then draw a quadrilateral the draw a diagonal dividing quadrilateral.use formula of triangle area (coordinate one) for both triangles and then add both the areas

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If sin(x+y) =a and sin (x-z) =b then prove cos2(y-z) - 4abcos (y-z) =1-2a^2-2b^2

Posted by Tamanna Kansal 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

i forget the questions of maths at very few time period

Posted by Abhishek Singh 7 years, 1 month ago

CBSE > Class 11 > Mathematics

5 answers

Priya Dharshini ☺☺ 7 years, 1 month ago

Weekly once go through all chapter sums.so that u will not forget and u will get revised with the topics. Practice only ncert for ur concept clearing.read even the theory part of text book also

2Thank You

Arpit Mishra 7 years, 1 month ago

First clear every question of ncert

1Thank You

Ankit Singh 7 years, 1 month ago

Rs Agarwal also

1Thank You

Shamsher Hassan 7 years, 1 month ago

Same here??

0Thank You

Muskan ???? 7 years, 1 month ago

Practice as much as u can with different book....best book is rd sharma

1Thank You

ANSWER

Exercise 9.2 and question no. 11

Posted by Harsh Kumar 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find x if x^2 - [x] - 4 = 0

Posted by Niraj Kumar 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the full form of maths

Posted by Shivansh Singh 7 years, 1 month ago

CBSE > Class 11 > Mathematics

3 answers

Shamsher Hassan 7 years, 1 month ago

Mental attack to healthy student ???

0Thank You

Shubham Chihnara 7 years, 1 month ago

Mentally affected teacher haressing students

0Thank You

Sanjeev Yadav 5 years, 9 months ago

Meri Aatma Tumhe Hamesa Satayegi

4Thank You

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The vertics of triangle PQR are p(2,1)

Posted by Nikhil Singhal 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Chapter 8 ka example question no. 4

Posted by Navanit Ray 7 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Arpit Mishra 7 years, 1 month ago

Write 6^n as (1+5)^n and then expand it

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How many 4 digit number are there with no digit repeated

Posted by Kiran Jadhav 7 years, 1 month ago

CBSE > Class 11 > Mathematics

5 answers

Shamsher Hassan 7 years, 1 month ago

no. 0 to 9 total numbers= 10 1000th place can't be filled by 0 bcoz if 0 is used then it will become 3 digit number so 1000th place can only be filled by 1 to 9 No. Of ways of filling 1000th place= 9 No. Of ways of filling unit,10th & 100th place= 9×8×7 Required 4 digit number = 9×9×8×7= 4536

0Thank You

Keshav Bindal 7 years, 1 month ago

=4536

0Thank You

Keshav Bindal 7 years, 1 month ago

9×9×8×7

0Thank You

Sanjeev Yadav 7 years, 1 month ago

There are such 9 numbers

0Thank You

Lakshmi Paathak 7 years, 1 month ago

9*8*7*10

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How to find the square root of complex number?

Posted by Rohit Gorka 7 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Sanjeev Yadav 7 years, 1 month ago

After removing iota

1Thank You

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Find the angle of traingle whose vertices are A (1,2), B (-3,2)and C (3,-2)

Posted by Pradeep Rathore 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the greatest term in the expansion of (10 + 3x) ²

Posted by Pradeep Rathore 7 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Muskan ???? 7 years, 1 month ago

100+9x2+60x

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Find the vertex, focus and directrix of the parabola 4y²+12x-12y+39=0 ?

Posted by Abhishek Chaudhary 7 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Muskan ???? 7 years, 1 month ago

First arrange all variable separately... example all x terms together and y team together....then make square of terms and extra numbers will be balanced by manging it in another side

1Thank You

ANSWER

(2^(3n - 5))÷(2^(5- n)) = 32 - n, find n

Posted by Isha Bansal 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Defination of limits and derivatives

Posted by Hemant Joshi 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Two lines cut the x axis of X at a distance of 4 and -4 and the axis of Y8 distance 2 and 6 respectively find the co-ordinate of the point of intersection

Posted by Dharmbir Rathee 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Root of 201? What is the method to find the root?

Posted by Binth Shakeer 7 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Binth Shakeer 7 years, 1 month ago

I need steps to find the root ?

0Thank You

Rajat Vashisth 7 years, 1 month ago

14.17 division method

3Thank You

ANSWER

How to find variance ? Which is the easy method to find root or variance?

Posted by Binth Shakeer 7 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Rajat Vashisth 7 years, 1 month ago

Depends on the typology of questions or the type of the series

2Thank You

ANSWER

Sum of 1to100 in 1 minute

Posted by Hemraj Kumar 7 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Říý@ ?? 7 years, 1 month ago

By using the formula {n×(n+1)}/2 Here , {n ×(n+1)}/2= {100 × (101)}/2 =10100/2 =5050

0Thank You

Samreen Siddique 7 years, 1 month ago

0Thank You

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Ehat is the formula gor €[1-cosπ/4n]/2

Posted by Arjun Lovely 7 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

ramlal is a dishonest shopkeeper.the 1 kg weight that he uses actually weights 600g.how much percent profit does he gain?

Posted by Yusuf Ansari 5 years, 9 months ago

CBSE > Class 11 > Mathematics

1 answers

Barkath Ulla 7 years, 1 month ago

It depends on how many consumers come to his shop.

1Thank You

ANSWER

Why modulus output is always positive?

Posted by Chesta Pawan Manchanda 7 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Priya Dharshini ☺☺ 7 years, 1 month ago

It is how people defined it. People wanted to define some function that takes a number as input and gives only the absolute value(always positive) of that number as output. And they named it as modulus

2Thank You

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