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How to do maths M finding it difficult

Posted by Shalenii S 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Is ncert is enough for board exams?

Posted by Jatin Ramnani 7 years, 2 months ago

CBSE > Class 12 > Mathematics

2 answers

Tushar Jaryal 7 years, 2 months ago

I think theory is enough from NCERT ....but you need to understand each and every line and but for the numericals you can also practice from other books as it will make your speed up and also increase your confidence level.......

1Thank You

Akshat Sharma 7 years, 2 months ago

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ANSWER

How many of u belongs to rajasthan

Posted by Arslaan Panwar 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Which chapter is running in your class????? In mine class it is integrals last exercise......

Posted by Medhavi Singh 7 years, 2 months ago

CBSE > Class 12 > Mathematics

3 answers

Medhavi Singh 7 years, 2 months ago

probability!!!!!!! Really fast ha....... ????

0Thank You

G K 7 years, 2 months ago

Vector 3D

2Thank You

Arslaan Panwar 7 years, 2 months ago

Probability

1Thank You

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dx/n(n+2)

Posted by Sneha Kumari 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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Ch5 5.3question 5

Posted by Need Kumar 7 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Satyam Kumar 7 years, 2 months ago

Simply differentiate the equation you get 2x+x.dy/dx+y+2y.dy/dx=0 On solving the last you get dy/dx=-(2x+y)/x+2y

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If A is a square matrix such that A^2 =I , then find the value of (A+I)^3 +(A-I)^3 -7A

Posted by Shivam Kumar 7 years, 2 months ago

CBSE > Class 12 > Mathematics

7 answers

G K 7 years, 2 months ago

Sekhar.....I think u speak in english daily.....thatswhy u write very nicely....so much impressed....?....

0Thank You

G K 7 years, 2 months ago

Thnx shekhar.....but plzzzz dont write anything.....i dont like....sorry if u feel bad......

0Thank You

Vishnu Tiwari 7 years, 2 months ago

It came in the 12th class exam

0Thank You

Shrey Shekhar 7 years, 2 months ago

I see you helping a lot of people Megha Yadav (and tolerating their bullshit). You have a kind heart and I respect that. I am kinda jealous of your knowledge of things

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G K 7 years, 2 months ago

(A-I)^3 + (A+I)^3 - 7A = A^3 - 3A^2 + 3A - I^3 + A^3 + 3A^2 + 3A + I^3 - 7A = 2A^3 + 6A - 7A = 2A^2 . A + 6A - 7A = 2I.A + 6A - 7A = 2A + 6A - 7A = 8A - 7A = A

2Thank You

G K 7 years, 2 months ago

For ex. ...2^4=16....2 to the power 4 is 16

0Thank You

Bhanu Behl 7 years, 2 months ago

What does ^ this sign mean?

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Construct an angle of 90 and justify it

Posted by Saurabh Singh 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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Evaluate the integrals Cosx Upon m (1+sinx)(2+sinx)

Posted by Krishna Kumar 7 years, 2 months ago

CBSE > Class 12 > Mathematics

2 answers

Ramesh Sahu 7 years, 2 months ago

log(1+sinx) /(2+sinx)

0Thank You

Nishchay Shakya 7 years, 2 months ago

Sinx ko t manlo uska differential hota h cosx fir to ho jayega

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Please integrate I= (2x-4)sqrt(4+3x-x^2) with respect to x

Posted by Srishti Khare 7 years, 2 months ago

CBSE > Class 12 > Mathematics

3 answers

Srishti Khare 7 years, 2 months ago

Please answer somebody

0Thank You

Srishti Khare 7 years, 2 months ago

Yes

0Thank You

Jeetu Sharma 7 years, 2 months ago

Question is not clear........do u mean......(2x-4)√(4+3x-x^2)

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All answers of last year board exam

Posted by Anjali Sahni 5 years, 8 months ago

CBSE > Class 12 > Mathematics

0 answers

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Which chapter is more difficult 'AOD' or 'INTEGRATION'

Posted by Nidhi Katariya 7 years, 2 months ago

CBSE > Class 12 > Mathematics

5 answers

Medhavi Singh 7 years, 2 months ago

AOD?

0Thank You

Nidhi Katariya 7 years, 2 months ago

Tere ghnte ko tere pichwade me ghusa le

1Thank You

Bhanu Behl 7 years, 2 months ago

Tune kya ghnta lena

0Thank You

Jeetu Sharma 7 years, 2 months ago

Intigration

0Thank You

Nidhi Katariya 7 years, 2 months ago

In your's opinion

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5+55

Posted by Deepak Kajle 7 years, 2 months ago

CBSE > Class 12 > Mathematics

4 answers

G K 7 years, 2 months ago

Why r u prooving urself as fool...

0Thank You

Aditi _Chouhan_ 7 years, 2 months ago

60 how simple it is...

0Thank You

Deepak Jindal 7 years, 2 months ago

Sixty(60) so simple???????????????

0Thank You

Priyal Rathi 7 years, 2 months ago

0Thank You

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Why we read Inverse trigonometry?

Posted by Nitish Kumar 7 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Tushar Jaryal 7 years, 2 months ago

1. In elecrical, to find power factor, 2. In mechanics, to find angle of repose, 3 In chemistry, to find bond angle.

2Thank You

ANSWER

Y we use +C in integration??

Posted by Abrar Hameed 7 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Gaurav Jena 7 years, 2 months ago

because we cannot find the value of "c" as it is arbitrary constant with each diff. expressions its values changes and not fixed for one that's why its indefinite cuz we exactly tell the value of it

3Thank You

ANSWER

Find out area of region bounded beetween circle s

Posted by Manoj Shukla 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integration of route 1+x under route 1+ (x+1)under route 1+(x+2)(x+4)dx

Posted by Ankit Kumar 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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Rank of matrix

Posted by Chirag Agarwal 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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In 2018-19 board exams value based questions are in syllabus or not????

Posted by Rahul Naskar 7 years, 2 months ago

CBSE > Class 12 > Mathematics

5 answers

Deepak Jindal 7 years, 2 months ago

No there is removal of value based question

0Thank You

G K 7 years, 2 months ago

Okk thanx....?

0Thank You

Akshat Sharma 7 years, 2 months ago

No it is confirm you can check

1Thank You

G K 7 years, 2 months ago

Really...I dont think so...

2Thank You

Akshat Sharma 7 years, 2 months ago

No board has removed value based questions thses year

2Thank You

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Can any one tell me why 'transformer' cannot work on DC source

Posted by Nidhi Katariya 7 years, 2 months ago

CBSE > Class 12 > Mathematics

5 answers

Akshat Sharma 7 years, 2 months ago

Answer which i had written had some mistake just usko niche se upar pado to sahi he

2Thank You

Akshat Sharma 7 years, 2 months ago

Harsh. Since , e = - d (phi) / dt = 0. Phi = BACos(theta) [constant] B=munot n I [constant] For DC, I = CONSTANT That's why transformer.........................

2Thank You

Nidhi Katariya 7 years, 2 months ago

Tnx.

1Thank You

Saurabh Katoch 7 years, 2 months ago

Because transformer contains inductors and we know that for dc the inductive reactance has infinite value.That's why it cannot work on dc

2Thank You

Nidhi Katariya 7 years, 2 months ago

Sorry it's a physics question

3Thank You

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Integrate the function 1/x-x cube

Posted by Dhiraj Singh Rajput 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is cofactor

Posted by Vishal Gupta 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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Integrate from 0 to π/2 sin2x logtanx dx please help me

Posted by Abhijeet Mehta 7 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Dyhhj Fyjjjh 7 years, 2 months ago

I = Int.(0 - pie/2)Sin2x.log tanx dx.............(1) = Int.Sin2[(pie/2)-x].log tan[(pie/2) - x]dx = Int.(0 - pie/2)Sin2x.log Cotx.dx............(2) By Adding (1) and (2) 2I = Int.(0 - pie/2)Sin2x.[logTanx + logCotx]dx =Int.Sin2x.log[Tanx.Cotx]dx Int.Sin2x.log1dx Since Sin(2×pie/2)=Sinpie=0 》2I=0 》I=0(solved)

1Thank You

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How to integrate √tanx w.r.t. x?

Posted by Rajat Dhull 7 years, 2 months ago

CBSE > Class 12 > Mathematics

2 answers

Gaurav Bansal 7 years, 2 months ago

∫√(tan x) dx Let tan x = t2 ⇒ sec2 x dx = 2t dt ⇒ dx = [2t / (1 + t4)]dt ⇒ Integral ∫ 2t2 / (1 + t4) dt ⇒ ∫[(t2 + 1) + (t2 - 1)] / (1 + t4) dt ⇒ ∫(t2 + 1) / (1 + t4) dt + ∫(t2 - 1) / (1 + t4) dt ⇒ ∫(1 + 1/t2 ) / (t2 + 1/t2 ) dt + ∫(1 - 1/t2 ) / (t2 + 1/t2 ) dt ⇒ ∫(1 + 1/t2 )dt / [(t - 1/t)2 + 2] + ∫(1 - 1/t2)dt / [(t + 1/t)2 -2] Let t - 1/t = u for the first integral ⇒ (1 + 1/t2 )dt = du and t + 1/t = v for the 2nd integral ⇒ (1 - 1/t2 )dt = dv Integral = ∫du/(u2 + 2) + ∫dv/(v2 - 2) = (1/√2) tan-1 (u/√2) + (1/2√2) log(v -√2)/(v + √2)l + c = (1/√2) tan-1 [(t2 - 1)/t√2] + (1/2√2) log (t2 + 1 - t√2) / t2 + 1 + t√2) + c = (1/√2) tan-1 [(tanx - 1)/(√2tan x)] + (1/2√2) log [tanx + 1 - √(2tan x)] / [tan x + 1 + √(2tan x)] + c

1Thank You

Shivam Sagar 7 years, 2 months ago

Let karo tanx ko t square

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Prove cos inverse x = tan inverse √1-x^2 {x

Posted by Brijesh Negi 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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Find eq. Of all lines having slope 2 and being tangent to curve y+ 2/x-3=0

Posted by Archana Mishra 7 years, 2 months ago

CBSE > Class 12 > Mathematics

0 answers

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If y = log tan (π/4+X/2) show that dy/dx -sec X=0

Posted by Lovepreet Bal 7 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Aisha Gupta 7 years, 2 months ago

Y=log(1+tanx/2)/1-tanx/2 =>y=log[(cosx/2+sinx/2)/(cosx/2-sinx/2)]. =>y=log[(cosx/2+sinx/2)²/(cos²x/2-sin²x/2)] =>y=log(1+sinx)/cosx =>y=log(secx+tanx). Now diff w.r.t x dy/dx=secxtanx+sec²x/secx+tanx =>dy/dx=secx. =>dy/dx-secx=0

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Log (1+x)-2x 2+x

Posted by Aman Shrivastav 7 years, 2 months ago

CBSE > Class 12 > Mathematics