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

A special tantrik yoga named "Kriya Yoga" can help u concentrate the waste energy into ur brain ...this will help in improving memory and concentration

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Vijay Bhatt 8 years ago

No function

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Vijay Bhatt 8 years ago

I have no relation with u

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How we can find strictly increasing or decreasing function

Posted by Vicky Tanwar 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Vijay Bhatt 8 years ago

By dy/dl means f'(x)

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ANSWER

Why 2+2 = 4

Posted by Vishal Gupta 8 years ago

CBSE > Class 12 > Mathematics

6 answers

Hitesh Kumar 8 years ago

Ye bhi koi Bhulne ki chej hai ????

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Unique Person Arupitw 8 years ago

Acha hai bhul mat jaana exam me

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Hitesh Kumar 8 years ago

Because 2 ka table mujhe aata hai??????

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Unique Person Arupitw 8 years ago

So intelligent persons???

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Vishal Gupta 8 years ago

Then why 2×2 is 4 only.. ??

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Hitesh Kumar 8 years ago

Because 2 (1+1)=2×2=4 ??????

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Find the equation of straight line for perpendicular to 2 line x+1/-3=y-3/2=z+2/1 x/1=y-7/-3=z+7/2 and passing through their point of intrersection.

Posted by Kajal Kumari 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

The x-cordinate of a point on the ine joining the point P(2,2,1) and Q(5,1,-2) is 4.Find it's z-cordinate

Posted by Bhupender Singh 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Hitesh Kumar 8 years ago

Answer hai -1

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ANSWER

Question number 22 of ncert miscellaneous exercise of chapter 5

Posted by N J 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

A dealer in rural area wishes to purchase a number of sewing machines.he has only ₹5760 to invest and has space for at most 20 items for storage.an electronic sewing machine coat him ₹360 and a manually operated sewing machine at a profit of ₹22 and a manually operated sewing machine at a profit of ₹18.assuming that he can sell all the items that he can buy,how should he invest his money in order to maximize his profit? Make it as a LPP and solve it graphically.

Posted by Shekhar Gupta 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Exercise 6.2 Q no 3

Posted by Gunish Pal 8 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is equation of curve?

Posted by Lipika Saha 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Aashish Kumar 8 years ago

What is curve????

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ANSWER

Find integration of x^4/(x-1)(x^2+1) dx

Posted by Supriya Ray 8 years ago

CBSE > Class 12 > Mathematics

5 answers

Aashish Kumar 8 years ago

Don't misbehave ...... Rohit? aati h to bata ni aati to chup rah...badtameezi mat kr....

1Thank You

Aashish Kumar 8 years ago

X ka power 4 h???? Que check kro yaar phir se.... Agar que right h to ans bataao iska kitta h?

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Priyanka Aggarwal 8 years ago

Ye sare Tere baap ☠️?????????????????????????????????????‍?‍??????????????????️?️??️?️?️?️?️???????????????????????????????????????????????????????????????????????????????????????????????????????????????????☺️???????????????????????????⛑️????❤️????????????❣️???️?️?️???️?????????????????????????????????????????????️?????????????????????????????????????????️????️?️???????????

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Priyanka Aggarwal 8 years ago

Chappal moo me deal le

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Priyanka Aggarwal 8 years ago

Goo khale

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ANSWER

Integrate it:- √tanx dx+ √cotx dx

Posted by Shivansh Walia 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Priyanka Aggarwal 8 years ago

Gobar khale

1Thank You

ANSWER

Is it compulsory to solve question given in vector form by vector method only....or can we do it by converting in cartesian form and then solving it...??

Posted by Himanshu Jain 8 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years ago

Nahi you can convert and solve ......it is accepted by cbse

1Thank You

Hitesh Kumar 8 years, 1 month ago

I think you can do it. But it is better to do the solution as per the question

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ANSWER

The monthly income of Aryan and baban are in ratio 3:4 and their monthly expenditure are in ratio 5:7 .if each saves rupees 15000 per month ,find their monthly income using matrix method

Posted by Sachin Negi 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Hitesh Kumar 8 years, 1 month ago

Let the monthly incomes of Aryan and Babban be 3x and 4x, respectively. Suppose their monthly expenditures are 5y and 7y, respectively. Since each saves Rs 15,000 per month, Monthly saving of Aryan: 3x−5y=15,000Monthly saving of Babban: 4x−7y=15,000 solve it ?? you will get the answer ⏩Monthly income of Aryan = 3×Rs 30,000=Rs 90,000 Monthly income of Babban = 4×Rs 30,000= Rs 1,20,000

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ANSWER

Integrate it secx/(1+cosecx)

Posted by Lavesh Agarwal 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Write the vector equation of a plane passing through the point a,b,c and parallel to the plane r.i+j+k=2

Posted by Aayisha Azeez 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Varun Arora 8 years ago

Equation of plane parallel to given plane is

r.(i+j+k)=α, where α is any constant --(1)

As plane passes through (ai+bj+ck) so we have ,

(ai+bj+ck).(i+j+k) =α

We get , α = a+b+c

Put the value of α in equation (1) we get the required equation of plane

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ANSWER

How to solve probability

Posted by Akshay Panwar 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

How to multiply A.B

Posted by Shona Dethe 8 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Aditya Raj 8 years, 1 month ago

ABCosQ

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If the sum of the length of the hypotenuse and the side of the right angle triangle is given so that area of triangle is maximum when the angle between them is180/3

Posted by Aman Singh 8 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If a and b are unit vectors, then what is the angle between a and b for a-2b to be a unit vecot

Posted by Shona Dethe 8 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Hitesh Kumar 8 years, 1 month ago

Angle =0

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Aditya Raj 8 years, 1 month ago

180 or 0

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ANSWER

Tan-¹(1) + cos-¹(-1/2) . Find principal value

Posted by Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

CBSE > Class 12 > Mathematics

5 answers

.Ismat .Jamil 8 years, 1 month ago

11π/12. (3 by mistake likh gya)

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.Ismat .Jamil 8 years, 1 month ago

Tan-1(1)+π-cos-1(1/2) {as cos-1(-x)=π-cos-1(x) so that x be in domain (-π,π). }. =π/4+π-π/3 =11π/3

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Hitesh Kumar 8 years, 1 month ago

The correct answer is 11pi/12

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Hitesh Kumar 8 years, 1 month ago

Sorry sorry

1Thank You

Hitesh Kumar 8 years, 1 month ago

May be 5pi/12

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ANSWER

Differentiate log tan inverse x

Posted by Shifa Qureshi 8 years, 1 month ago

CBSE > Class 12 > Mathematics

7 answers

Hitesh Kumar 8 years ago

Pata hai mujhe vo maine differentiation nahi dekh tha maine socha integration hai. Qki differentiation to easy hota hai isliye at first maine socha integration karna hoga. But maine baad me dekha differentiation he karna hai??

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Aparna Sharma 8 years, 1 month ago

And as it is differentiation not integration so you need not use any ILATE

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Aparna Sharma 8 years, 1 month ago

1/((1+x^2)(tan^-1 x))

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Hitesh Kumar 8 years, 1 month ago

Sorry sorry??? I didn't saw that sorry

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Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

1/(tan-¹x×(1+x²))

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Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Lol differentiate karna hai

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Hitesh Kumar 8 years, 1 month ago

∫log(tan−1(x))dx Let tan−1(x)=t⇒1/1+x2dx=dt.....(i) Also x =\tan(t) .......(ii) Therefore ( by using (ii)): ∫log(tan−1(x))dx=∫log(t).(1+tan2(t))dt=∫(log(t)+log(t)tan2(t))dt=∫(log(t)+log(t)sec2(t)−log(t))dt=∫log(t)sec2(t)dt iske baad ILATE ka use karke ans aa jaiga

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