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Ncert class 11 chapter 13.1 question 8 in maths

Posted by Lalit Soni 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

How many terms of the AP -5,-9/2, -4, .... will give the sum 0?

Posted by Yash Mahajan 4 years, 1 month ago

CBSE > Class 11 > Mathematics

3 answers

Kunal Tanu 3 years, 11 months ago

-19=n

Yashraj Saini 4 years, 1 month ago

It is much better to use doubtnut app for clearing the doubts by video solution in hindi language

Yashraj Saini 4 years, 1 month ago

a is -5 ,d is 1/2 ,an is 0 Here we have to find n Apply the formula : an=a+(n-1)d And you will get your answer

ANSWER

let A = (1,2,3), B=(3,4) and c={4,5,6} find A×(B U C)

Posted by Sairaj Patil 4 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Kunal Tanu 3 years, 11 months ago

(1,3)(1,4)(1,5)(1,6)(2,3)(2,4)(2,5)(2,6)(3,3)(3,4)(3,5)(3,6)

S̶H̶I̶V̶A̶N̶S̶H̶ K̶U̶M̶A̶R̶ 4 years, 1 month ago

{(1,3),(1,4),(1,5),(1,6),(2,3),(2,4)(2,5),(2,6),(3,3),(3,4),(3,5),(3,6)}

ANSWER

A={3,4} B={x belong to N ,2x -1smaller than 5} modules A×B modules colse

Posted by Puja Kumari 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Hruday Reddy 4 years, 1 month ago

(1,3),(1,4),(2,3),(2,4)

ANSWER

What can be said regarding if a line if its slope is negative a)teta is an acute angle.b)teta is an obtuse angle.c)either the line is x-axis or it is parallel to the x-axis.d)none of these.

Posted by Shahana Shahana 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Sia ? 4 years, 1 month ago

Let {tex}\theta{/tex} be the angle of inclination of the given line with the positive direction of the x-axis in anticlockwise sense.
Then, its slope is given by m = tan {tex}\theta{/tex}.
If the slope of the line is negative, then
slope = m = tan {tex}\theta{/tex} < 0
{tex}\Rightarrow{/tex} {tex}\theta{/tex} lies between 90° and 180°
{tex}\Rightarrow{/tex} {tex}\theta{/tex} is an obtuse angle.
Therefore, a line of negative slope makes an obtuse angle with the positive direction of x-axis in anticlockwise direction.

ANSWER

cos^2a+cos^2(a+120)+cos^2(a-120)

Posted by Shubham Jaiswal 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

In how many ways can the letters of the word STRANGE be arranged so that the vowels may appear in the odd places ?

Posted by Swattik Pramanik 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

I can't understand limits

Posted by Prashuna Bhaskaran 4 years, 1 month ago

CBSE > Class 11 > Mathematics

3 answers

Hruday Reddy 4 years, 1 month ago

Actually u have studied the same in 10th so be cool and study camly

Yashraj Saini 4 years, 1 month ago

Don't go too much deep in the concept. Just proceed step by step. Vaise bhi Newton ki batao chizon ko kon samajh paya h

Yashraj Saini 4 years, 1 month ago

Start meditation and yoga and control yourself . One day u will understand your limits ????

ANSWER

write the interval {-2< x ≤ -1}

Posted by Md Arbaz 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Aaditay . 4 years, 1 month ago

(-2,-1]

ANSWER

n^2+n find the sum of n terms in this series

Posted by Sandhya Singh 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(ax)power n+b power n

Posted by Pari Mehta 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the numarutue

Posted by Ayushmaan Chauhan 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Question (1 Point) ???−>32 (?+[?]) ?? ????? ??Ltx−>32 (x+[x]) is equal to 5252

Posted by Ajitesh Kanojia 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Question (1 Point) ???−>3 |?|? ??Ltx−>3 |x|x is 11

Posted by Ajitesh Kanojia 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What universal set (s) would you propose for each of thd following 1the set of right triangle

Posted by राज बर्मा राज 4 years, 1 month ago

CBSE > Class 11 > Mathematics

4 answers

Aditi Shah 4 years, 1 month ago

Sat of triangle

Gaurav Baghel 4 years, 1 month ago

set of Triangle

Aryamann Sharma 4 years, 1 month ago

Set of tringles

Revanshi Grewal 4 years, 1 month ago

Set of triamgles

ANSWER

a complex number in the form of a+ib is. (2+i)x-i/4+1 + (1-i)+2i/4i is purely real. Then find relation between x and y.

Posted by Aashay Tembhurne 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Aryamann Sharma 4 years, 1 month ago

x=+‐1 and y=-4

ANSWER

What is A union B intersection A union A'

Posted by Anshika Patel 4 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Aryamann Sharma 4 years, 1 month ago

AUB

Aashay Tembhurne 4 years, 1 month ago

Answer is AUB

ANSWER

1-2i/2+i+4-i/3+2i

Posted by Chaitrali Renuse 4 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Aryamann Sharma 4 years, 1 month ago

(10-24i)/13

Anshika Patel 4 years, 1 month ago

(10-24i)/13

ANSWER

Far What Value of k are the poin ریم (2,4), (1,-3) and (3, 6) Collineas

Posted by M.Monish Raj 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Vartika

Posted by Himanshu Rajput 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Shrey Patel 4 years, 1 month ago

Vartika jha has been one of the contestant of dance plus and now she is a choreographer in super dancer chapter 4

ANSWER

9(15*+30/45)

Posted by Sarika Nagar 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Hruday Reddy 4 years, 1 month ago

9

ANSWER

Domain of x2-1 / x2+4x-21

Posted by Anish Aggarwal 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

√3x2-√2x+3√3=0

Posted by Ritika Bhardwaj 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Sameer Kumar Tagore 4 years, 1 month ago

x=5√6by 2

ANSWER

What is centromer e

Posted by Zeyad Hussain 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Zeyad Hussain 4 years, 1 month ago

It is the part of chromosome

ANSWER

Lim. 4x-1/2√x-1 X 1/4.

Posted by Kushagra Dixit 4 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the conjugate of the complex numbers: (i) -i√5

Posted by Anubhuti Chhetri 4 years, 1 month ago

CBSE > Class 11 > Mathematics

3 answers

Kunal Tanu 3 years, 11 months ago

change this symbol iyota

Anurag Singh 4 years, 1 month ago

sign change iorta

Isha Bansal 4 years, 1 month ago

Conjugate of the given complex number is +i√5

ANSWER

Find the modulus and the arguments of each complex numbers: 1) z=-1-i√3

Posted by Akansha Rajput 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Sameer Kumar Tagore 4 years, 1 month ago

Argument of z=πby3 and modulus of z=2

ANSWER

If ????+????÷ ????−???? = 3,?ℎ?? the value of ??? 4 ? ?? a) 16 / 25 b) 2/5 c) 1/5 d) 3/5

Posted by Hemang Dubey 4 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Hemang Dubey 4 years, 1 month ago

Correction : find the value of sin^4 theta

ANSWER

There are 200 individual with skin disorder 120 has been exposed to chemical C1 50 to chemical c2and 32 chemical both the chemical C1 C2 1) chemical C1 but no chemical C2 2) chemical C2 but no chemical c1 3) chemical C1 or chemical C2

Posted by Akash Malsa 4 years, 1 month ago

CBSE > Class 11 > Mathematics

5 answers

Anurag Singh 4 years, 1 month ago

related to question

Anurag Singh 4 years, 1 month ago

relatedcto ques.

Anurag Singh 4 years, 1 month ago

example 27 this solution unit 1st math book

Ashu Pal 4 years, 1 month ago

90,20 and 140 are answer for this question

Akash Malsa 4 years, 1 month ago

Plz tell the answer

ANSWER

Definition of set

Posted by Praveen Kumar Mahour 4 years, 1 month ago

CBSE > Class 11 > Mathematics

4 answers

Aryamann Sharma 4 years, 1 month ago

A set is a well defined or well distinguished collection of objects .

Tisha Sharma 4 years, 1 month ago

A set is well-defined collection of objects Ex- ( a,e,i,o,u)

Hemang Dubey 4 years, 1 month ago

A set is a well defined or well distinguished collection of objects .

Dev Naha 4 years, 1 month ago

In Math, sets are a collection or aggregate of well define objects or elements.

ANSWER

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