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

P(E1) =0.6 P(E2) =0.4 Let A be the event new product is introduced P(A/E1) =0.7 P(A/E2)=0.3 Now find P(E2/A) by baye's theorem =0.4×0.3/0.6×0.7+0.4×0.3

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A company produces two types of goods, A and B, that require gold and silver. Each unit of type A requires 3 g of silver and 1 g of gold while that of B requires 1 g of silver and 2 g of gold. The company can use atmost 9 g of silver and 8 g of gold. If each unit of type A brings a profit of ` 40 and that of type B ` 50, find the number of units of each type that the company should produce to maximize the profit. Formulate and solve graphically the LPP and find the maximum profit.

Posted by Aman Jakhar 7 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Find the equation of plane which passes through points (1,0,0) , (0,1,0) and which makes an angle π/4 with the plane x+y=3

Posted by Amandeep Singh 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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A jet of enemy is flying along the curve y=x^2 + 2 and a soldier is placed at the point (3,2). Find the minimum distance between the soldier and the jet .

Posted by Akshaydeep Sharma 7 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Gaurav Seth 7 years, 1 month ago

Let the point (x, y) be the current position of helicopter along the curve (y = x2 + 2).

Given jet is placed at the point (3,2).

Therefore, distance between jet and soldier = D

Now, we know that, if D is minimum then D2 is also minimum.

So, D2 =

For minimum D2, we have

⇒ x = 1 as there are no real rots for the equation

Again,

Clearly, for x = 1, distance is minimum.

On putting value of x in the given curve , we get

y = (1)2 + 2 = 3

Therefore, point (1,3) is nearest to point (3,2)

Hence, minimum distance =

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Aman Kumar 7 years, 1 month ago

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How to solve. secx/1+cosecx

Posted by Radhika Kapoor 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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How to solve Ax^2+9A+BX^2+BX+CX+C

Posted by Shagun Gupta 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Show that a,b,c vectors are coplanar

Posted by R.M.K. Khan 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Shivani Shivani 7 years, 1 month ago

Multiply three vectors a,b,c by scalar triple product

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Maths m important question

Posted by Kundan Kumar Mahato 7 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Nitika Neb 7 years, 1 month ago

Do ten year paper

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Gaytri Devi 7 years, 1 month ago

Do complete ncrt book as well as last 10years sample papers .and you can also do arihant book questions

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Using property of determinant b+c a a b c+a b c c a+b =4abc

Posted by Vishwajeet Chaturvedi 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Which is small integer

Posted by Anshul Mahour 7 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Sakshi Singh 7 years, 1 month ago

But minus infinity is the smallest integer not small?????

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Raghvendra Yadav 7 years, 1 month ago

Minus infinity

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Is word problems comes from diffrential equation..?? If yes then if how much marks it contains.

Posted by Amandeep Kumar 7 years, 1 month ago

CBSE > Class 12 > Mathematics

2 answers

Amandeep Kumar 7 years, 1 month ago

Which year It comes.. Can you give some proof

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Mansi Gupta 7 years, 1 month ago

Yes word problems comes from differential equation

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Y^x=e^y-x prove that dy/dx=1+logy/logy

Posted by Ashish Kumar 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Sine inverse root of (1+x)(1+x)÷2

Posted by Rashmirani Jena 5 years, 10 months ago

CBSE > Class 12 > Mathematics

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Integrate: 1/x+ squareroot of a^2-x^2 within the limit 0 to a

Posted by Sathya Krishnan 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Karan Sain 7 years, 1 month ago

Log(a) + π/4×a^2.

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Baye's theorem explanation.

Posted by Ankit Singh 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Mean value theorem

Posted by Neha Saini 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Harshal Jain 7 years, 1 month ago

If a fun is cont. and diff. In (a,b) then there is a no c such that f'(c) = ( f(b)-f(a) ) ÷ b-a

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sin^mx.cos^nx. Differentiate

Posted by Rahul Gaglani 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Find the distance between the point (7,2,4) and plane determined by point A(2,5,-3) B(-2,-3,5) C (5,2,-3)

Posted by Devanshu Jaiswal 7 years, 1 month ago

CBSE > Class 12 > Mathematics

0 answers

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Maths cbse paper is totaly ncert based or not

Posted by Tanu Sharma 7 years, 1 month ago

CBSE > Class 12 > Mathematics

3 answers

Boyar Debbarma 7 years, 1 month ago

We can't say totally, but what u need is the concept

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H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 1 month ago

All questions pattern are same but numerical value can be different and for 100% do sample paper..

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Tanu Sharma 7 years, 1 month ago

And if not then how to give 100%in cbse

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