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

same here bro but i m happy becoz in lockdown i didn't touch any book, but due to preboard i m now able to attend the board examinating?? Don't be in panic bro...........

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Diti Urvija 4 years, 6 months ago

Paper dedo dekho ki kitna preparation hua utna seriously mt lo pre boards ko nhi toh demotivate ho jaoge tayyari ysi tarah kro jaise kr rahe the

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Mamta ... 4 years, 6 months ago

Arif mere according aapko papers attend karne chahiye bcuz mujhe nahi lagta ke papers dene se aapka kuch nuksan hoga ulta benefit he hoga aapka. ALL THE BEST DEAR.

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Arif Khan 4 years, 6 months ago

But ghar wale, school wale kahenge paper kyun nahi diye

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Rafat Sher Khan 4 years, 6 months ago

Yes

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ANSWER

Intrigal x²+x+1/(x+1)²(x+2)

Posted by Manish Kumar 4 years, 6 months ago

CBSE > Class 12 > Mathematics

4 answers

Anish Pandey 4 years, 5 months ago

Use partial fractions

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Prakhar Gupta 4 years, 6 months ago

Use formula px+q = A dy/dx + B

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Sushree Sangita 4 years, 6 months ago

It is done by the process of integration by partial fraction method

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Sushree Sangita 4 years, 6 months ago

Ans is ln (x+2)-1/(x+1)+ln(x+2)+constant

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ANSWER

What is IF in maths

Posted by Rakhi Pancholi 4 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Ashutosh Tripathy 4 years, 6 months ago

It is known to be integrating factor Formula for this e^integration of 'p'dx

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Niket Krishnan 4 years, 6 months ago

IF DENOTES INTEGRATING FACTOR

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ANSWER

Posted by Rajkumar Singh 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Vivek Chaurasia 4 years, 6 months ago

?‍♂️?‍♂️?‍♂️

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ANSWER

Lab manual activity 1answers

Posted by Arathy Anil 4 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is the value of log2 and log0

Posted by Shivam Saklani 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Jasmin Durga 4 years, 6 months ago

Log2=0.3010 The value of Log0 is not defined

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ANSWER

If A= [ abcd] then verify that (A-A') is a skew symmetric matrix where A' denotes the transpose of A

Posted by Ashampreet Kaur 4 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Is statement questions of linear programming is deleted or not??

Posted by Prakhar Gupta 4 years, 6 months ago

CBSE > Class 12 > Mathematics

4 answers

Prakhar Gupta 4 years, 6 months ago

Oswal ke sample papers meh bhi nhi dikhaye gye.

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Prakhar Gupta 4 years, 6 months ago

Yaar lakin koi bol rha h delete h or koi nhi h delete.

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Rishab Jain 4 years, 6 months ago

Vaise to delete ho gye lekin krle bhai kya pta aa jaye kyuki hmare pre board me aaye the

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Kapil Adhikari 4 years, 6 months ago

Yes, Word problem questions are deleted for session 2020-21

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ANSWER

if A and B are symmetric matrices ,prove that AB-BA is an skew symmetric matrices

Posted by Sahib Parnami 4 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Aditya Chandel 4 years, 5 months ago

Let X=AB-BA Given A'=A and B'=B(as A and B are symmetric matrices) X'=(AB-BA)'=(AB)'-(BA)'=B'A'-A'B'=BA-AB=-(AB-BA)=-X Since X'=-X Therefore,X=AB-BA is a skew symmetric matrix if A and B are symmetric matrices

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Educationjone Rk Yadav 4 years, 6 months ago

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ANSWER

integrare dx/x^2 - 2x +1

Posted by Tanu . 4 years, 6 months ago

CBSE > Class 12 > Mathematics

3 answers

Ashutosh Tripathy 4 years, 6 months ago

Iintegrare dx/x^2 - 2x +1 =integration dx/(x-1)^2 =integration dt/t^2 =-1/t+c =-1/x-1+c

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Vivek Chaurasia 4 years, 6 months ago

Agr glat hua ho tho sryy but asa hii solve hoga.. ????

1Thank You

Vivek Chaurasia 4 years, 6 months ago

Aree yrr..?‍♂️?‍♂️ Integrate 1/x^2-2x+1 = x^2 - 2x +1^ - 1^+2 =(x-1)^2 + root 5 pa whole square .. Abb yrr eska aaga solve kar loo espa humsa na ho paayega type karka???

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ANSWER

Maths ka sabse scoring chapter konsa h

Posted by Diti Urvija 4 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Satyam Suman 4 years, 5 months ago

Matrix and determinant

0Thank You

Vivek Chaurasia 4 years, 6 months ago

Calculus ??

9Thank You

ANSWER

Find second order derivative sin(logx)

Posted by Vishu Pundir 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Kapil Adhikari 4 years, 6 months ago

Y=sin(logx)

dy/dx=cos(logx) .1/x)

Now,by quotient rule

d²y/dx²=[x(-sin(logx).1/x)- cos(logx).1]/x²

d²y/dx²=[-sin(logx)-cos(logx)] /x²

2Thank You

ANSWER

x^2 - y^2 = ?

Posted by Tripti Rawat 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Diti Urvija 4 years, 6 months ago

(x-y)(x+y)

5Thank You

ANSWER

Kya koi chapter 1 explain kara sakta hai plzz

Posted by Abhijeet Singh 4 years, 6 months ago

CBSE > Class 12 > Mathematics

3 answers

Vivek Chaurasia 4 years, 6 months ago

One shot dekh le bhai... ??

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Queen Manisha 4 years, 6 months ago

Shashank vohara sir ne ye chapter bohot ache se kraya hain hain @ON YOU TUBE

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Queen Manisha 4 years, 6 months ago

https://youtube.com/playlist?list=PLOB4Q52rs1U7rM52Ih7plGyi_RseuRCjz

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ANSWER

Check whether the relation R in the set N of natural numbers given by R = {(a, b) : a is divisor of b} is reflexive, symmetric, or transitive. Also, determine whether R is an equivalence relation.

Posted by Badmalatha Velmurugan 4 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Sia ? 4 years, 5 months ago

Let there be a natural number n,
We know that n divides n, which implies nRn.
So, Every natural number is related to itself in relation R.
Thus relation R is reflexive .
Let there be three natural numbers a,b,c and let aRb,bRc
aRb implies a divides b and bRc implies b divides c, which combinedly implies that a divides c i.e. aRc.
So, Relation R is also transitive .
Let there be two natural numbers a,b and let aRb,
aRb implies a divides b but it can't be assured that b necessarily divides a.
For ex, 2R4 as 2 divides 4 but 4 does not divide 2 .
Thus Relation R is not symmetric .

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ANSWER

What Is the maximum value of ,(1) 28 (2) 20 (3) 21 (4) 40

Posted by Devki Singh 4 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Nikhil Kumar 4 years, 5 months ago

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Kush Nema 4 years, 6 months ago

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ANSWER

Maths lab manual observation solution

Posted by Nishant Yadav 4 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Solve the equation dy/dx =ycotx , given X=π/2, y=1

Posted by Aarti Rana 4 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Rajnish Yadav 4 years, 6 months ago

dy/dx=ycotx (separate variable both side) dy/y=cotx dx (Integration both side) logy=log(sinx)+c logy-log(sinx)=logc (loga-logb=loga/b) logy/sinx=logc y/sinx=c y=sinx(c)

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The probability that a bulb will fuse within an year is 0.05. Find the probability that out of 5 bulbs 3 bulbs will fuse within the year.

Posted by Aarti Rana 4 years, 6 months ago

CBSE > Class 12 > Mathematics