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The number of subsets of a set containing n elements is

Posted by Jaiprakash Vijay 6 years, 3 months ago

CBSE > Class 11 > Mathematics

3 answers

Aditya Khurana 6 years, 3 months ago

2 to power n

Pawan Prakash 6 years, 3 months ago

2to the power n

Rajkumar Dixit 6 years, 3 months ago

2 to the power n

ANSWER

Pattern kya hai cbse mid term ka ?marks distribution of syllabus mid term?

Posted by Viks Rathor 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Sia ? 6 years, 3 months ago

You can check syllabus in mycbseguide app of each subject in syllabus last page contains exam design which will help you.

ANSWER

Range

Posted by Ankit 10316 Kumar. 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

How many diagonals are there in a polygon with n sides ?

Posted by Anshul Tiwari 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Anshul Tiwari 6 years, 3 months ago

Solution= A polygon of n side has n vertices. By joining any two vertices of a polygon, we obtain either a side or a diagonal of the polygon. Number of line segment obtained by joining the vertices of an n sided polygon taken two at a time = Number of ways of selecting 2out of n =nC2=n(n-1)/2 Out of these lines n lines are the sides of the polygon. Number of diagonals of the polygon =n(n-1)/2-n= n(n-3)/2

ANSWER

Important question chapter 5

Posted by Yaman Kashyap 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Solve for x sinx.tanx-1=tanx.sinx

Posted by Rihan Shekh 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Y=x+tanx

Posted by Abhishek Kolekar 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Solve x^2+x+1/√2=0 with the help of Quadratic formula (Complex number)

Posted by Sarika Popli 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Kshitij Gautam 6 years, 3 months ago

First we would shift the denominator under root of 2 at rhs

ANSWER

convert the complex no. into polar z=i-1/cos pi/3+ isin pi/3

Posted by Puneet Jaiswal 6 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Prashant Sharma 6 years, 3 months ago

√2(cos5π\12 +i sin 5π\12)

Prashant Sharma 6 years, 3 months ago

√2(cos 5π\12 + sin 5π\12)

ANSWER

Find the value of cos (-1710)

Posted by Arti Bansal 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Sia ? 6 years, 3 months ago

cos (-1710^o)
= cos (1710^o) (As cos (-x) = cos x)
{tex}=\cos(1710\times{\textstyle\frac{\mathrm\pi}{180}}){/tex}
{tex}=\cos({\textstyle\frac{19\mathrm\pi}2}){/tex}
{tex}=\cos(9{\textstyle\frac12}\mathrm\pi){/tex}
{tex}=\cos(10\mathrm\pi{\textstyle\frac{\mathrm\pi}2}){/tex}
{tex}=\cos(-{\textstyle\frac{\mathrm\pi}2}){/tex}
{tex}=\cos(-{\textstyle\frac{180}2}){/tex}
= cos (-90^o)
= cos 90 (As cos (-x) = cos x )
= 0

ANSWER

What is square root of -7-24i ?

Posted by Shivam Dangi 6 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Shivam Dangi 6 years, 2 months ago

Please clear

Prashant Sharma 6 years, 3 months ago

3-4i and -3+4i

ANSWER

find range of |x|÷x

Posted by Dipti Chawla 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Prashant Sharma 6 years, 3 months ago

1 and -1

ANSWER

What is the square root of iota with full solution ??

Posted by Shiv Rathor 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Yash Chaudhary 6 years, 2 months ago

- iota

ANSWER

Middle term split

Posted by Rahul Upadhyay 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the modulus and argument of the complex no 1+i/1-i

Posted by Nishant Shishodia 6 years, 3 months ago

CBSE > Class 11 > Mathematics

3 answers

Sourabh Yadav 6 years, 3 months ago

Modulus=1 argument=π

Nishant Shishodia 6 years, 3 months ago

Modulus =1

Arghyadeep Kolay 6 years, 3 months ago

Modulus =0 Argument =pi/2

ANSWER

What is 0/0

Posted by Maxout Khushit 6 years, 3 months ago

CBSE > Class 11 > Mathematics

3 answers

Sourabh Yadav 6 years, 3 months ago

0

Harender Singh 6 years, 3 months ago

0/0 is Not defined Note :- any number/0 is infinite not this

Gopal Singhal 6 years, 3 months ago

Infinite

ANSWER

a+b+c/a Ko 1/a kaise kre???

Posted by Anjali Kumari??? 6 years, 3 months ago

CBSE > Class 11 > Mathematics

4 answers

Anjali Kumari??? 6 years, 3 months ago

What

Gourav Richa Richa 6 years, 3 months ago

Ans

Gourav Richa Richa 6 years, 3 months ago

My question

Gourav Richa Richa 6 years, 3 months ago

Rus lization

ANSWER

How to find Range ??

Posted by Sanjivni Burnwal 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Somali Bohidar 6 years, 3 months ago

There are mainly 2 ways.. Either we equate it by 'y' and then define it in terms of x Or If we know the range of the value...for eg., -1<sinx<1

ANSWER

Draw the graph of the following function and find range of f (x) =|x-2|+|2-x|for all belongs to - 3is equal to or smaller than x and x is equal to or greater than 3

Posted by Garima Bhardwaj 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Slove √5x^2+x+√5=0

Posted by Aditya Akhouri 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

In a survey of 100 persons it was found that 28 read magazinescA,30read magazines B and42read magazines C,8 read magazine A&B,10readA&C,5readB&C,and 10read all three magaxinr How many read none of three magazine

Posted by Tanu Thakur 6 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Yash Satya 6 years, 3 months ago

Use formula of three sets, find union And then subtract from universe (100)

Yash Satya 6 years, 3 months ago

13

ANSWER

2+2=5 prove that. Ans: We can write as, 20-16=25-20 5×4-4×4=5×5-4×5 4 (5-4)=5 (5-4) 4=5 2+2=5 Hence proved.... Q. is what mistake Challenge for alll....

Posted by Lucky Papa 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Nancy Vashisht 6 years, 3 months ago

20-16=4 and 25-20=5 so 20-16 is not equal to 25-20.your first step is wrong

ANSWER

Write set builder form of 1/8,2/11,3/16??

Posted by Om Prakash 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Prashant Sharma 6 years, 3 months ago

{ X : X = n / n^2 + 7 , n = 1,2 and 3 }

ANSWER

A two digit number is 4 times the sum and three times the products of its digit. The number is

Posted by Ankush Yadav 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Prashant Sharma 6 years, 3 months ago

24

ANSWER

Derivative of tan(3x+1)using 1st principle

Posted by Aman Yadav 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

given an acute triangle ABC such that science equals to 4 by 5 and 10 equal to 24 by 7 and equal to 50 area of the triangle ABC is equal to

Posted by Akshat Kumar Gupta 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Taking the moon distance from the earth as 360000km and the angle subtended by the moon at any point O on the earth as half a degree estimate the diameter of the moon.

Posted by Anurag Sharma 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Miscellaneous chapter 9 question 26

Posted by Jass Preet 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

2 5^p^3= n^p^4

Posted by Munish Kaura 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find np5=42xnp3

Posted by Harsh Raj 6 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

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