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 7 years, 10 months ago

No function

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Vijay Bhatt 7 years, 10 months ago

I have no relation with u

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How we can find strictly increasing or decreasing function

Posted by Vicky Tanwar 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Vijay Bhatt 7 years, 10 months ago

By dy/dl means f'(x)

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ANSWER

Why 2+2 = 4

Posted by Vishal Gupta 7 years, 10 months ago

CBSE > Class 12 > Mathematics

6 answers

Hitesh Kumar 7 years, 10 months ago

Ye bhi koi Bhulne ki chej hai ????

1Thank You

Unique Person Arupitw 7 years, 10 months ago

Acha hai bhul mat jaana exam me

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Hitesh Kumar 7 years, 10 months ago

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

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Unique Person Arupitw 7 years, 10 months ago

So intelligent persons???

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Vishal Gupta 7 years, 10 months ago

Then why 2×2 is 4 only.. ??

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Hitesh Kumar 7 years, 10 months ago

Because 2 (1+1)=2×2=4 ??????

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ANSWER

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 7 years, 10 months 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 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Hitesh Kumar 7 years, 10 months ago

Answer hai -1

1Thank You

ANSWER

Question number 22 of ncert miscellaneous exercise of chapter 5

Posted by N J 7 years, 10 months 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 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Exercise 6.2 Q no 3

Posted by Gunish Pal 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

What is equation of curve?

Posted by Lipika Saha 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Aashish Kumar 7 years, 10 months ago

What is curve????

4Thank You

ANSWER

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

Posted by Supriya Ray 7 years, 10 months ago

CBSE > Class 12 > Mathematics

5 answers

Aashish Kumar 7 years, 10 months ago

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

1Thank You

Aashish Kumar 7 years, 10 months 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 7 years, 10 months ago

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

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Priyanka Aggarwal 7 years, 10 months ago

Chappal moo me deal le

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Priyanka Aggarwal 7 years, 10 months ago

Goo khale

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ANSWER

Integrate it:- √tanx dx+ √cotx dx

Posted by Shivansh Walia 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Priyanka Aggarwal 7 years, 10 months 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 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

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

1Thank You

Hitesh Kumar 7 years, 10 months ago

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

1Thank You

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 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Hitesh Kumar 7 years, 10 months 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 7 years, 10 months 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 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Varun Arora 7 years, 10 months 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 7 years, 10 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

How to multiply A.B

Posted by Shona Dethe 7 years, 10 months ago

CBSE > Class 12 > Mathematics

1 answers

Aditya Raj 7 years, 10 months ago

ABCosQ

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ANSWER

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 7 years, 10 months 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 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Hitesh Kumar 7 years, 10 months ago

Angle =0

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Aditya Raj 7 years, 10 months ago

180 or 0

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ANSWER

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

Posted by Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

CBSE > Class 12 > Mathematics

5 answers

.Ismat .Jamil 7 years, 10 months ago

11π/12. (3 by mistake likh gya)

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.Ismat .Jamil 7 years, 10 months 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 7 years, 10 months ago

The correct answer is 11pi/12

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Hitesh Kumar 7 years, 10 months ago

Sorry sorry

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Hitesh Kumar 7 years, 10 months ago

May be 5pi/12

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ANSWER

Differentiate log tan inverse x

Posted by Shifa Qureshi 7 years, 10 months ago

CBSE > Class 12 > Mathematics

7 answers

Hitesh Kumar 7 years, 10 months 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??

1Thank You

Aparna Sharma 7 years, 10 months ago

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

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Aparna Sharma 7 years, 10 months ago

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

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Hitesh Kumar 7 years, 10 months ago

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

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Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

1/(tan-¹x×(1+x²))

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Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 7 years, 10 months ago

Lol differentiate karna hai

1Thank You

Hitesh Kumar 7 years, 10 months 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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