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

A trust fund has Rs. 30, 000 that, must be invested in two different types of bonds. The first bond pays 5% interest per year, and the second bond pays 7% interest per year. Using matrix multiplication, determine how to divide Rs. 30,000 among the two types of bonds. If the trust fund must obtain an annual total interest of:
(a) Rs. 1800 (b) Rs. 2000

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Weightage marks of NCERT in board exam ?

Posted by Mohit Singh 7 years ago

CBSE > Class 12 > Mathematics

1 answers

Shashank Shashank 7 years ago

80%

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To prove dy/dx=y/x ,if sec(x+y)/(x-y) =a

Posted by Pooja Singh 7 years ago

CBSE > Class 12 > Mathematics

0 answers

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How to get marks above 90% in 30 day's in mathematics?How to study?

Posted by Rajveer Ranawat 7 years ago

CBSE > Class 12 > Mathematics

2 answers

The Stuff The Stuff Works 7 years ago

Hi rajveer i will recommend you to get a chapterwise previous year book complete on daily basics atleast 2 to 3 times then you van get 95+

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Nikhil Singh 7 years ago

Solve 1or 2 problems of every type.

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2cos+3sin

Posted by Raosachin Yadav 7 years ago

CBSE > Class 12 > Mathematics

1 answers

Ram Kushwah 7 years ago

your question is not complete.

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How to study maths?

Posted by Garima Malhotra 7 years ago

CBSE > Class 12 > Mathematics

2 answers

Zukini G 7 years ago

Lolzz @adarsh khatri?

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Adarsh Khatri 7 years ago

Easiest way... . . . . . . Please don't.?

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Tan30=sin30/cos30

Posted by Ruchi Rathore 7 years ago

CBSE > Class 12 > Mathematics

1 answers

Rohan Roy 7 years ago

Yes

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will the paper make in the Rd Sharma

Posted by Ankit Sharma Kaushik 7 years ago

CBSE > Class 12 > Mathematics

2 answers

Purna Thami 7 years ago

Not really

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Neerhans Maurya 7 years ago

Bhai examiner ne mujhe nhi bataya

1Thank You

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Mode of A find

Posted by Prabhakar Shukla 7 years ago

CBSE > Class 12 > Mathematics

0 answers

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How can i integrate x^4/(x^4+81)

Posted by Vigneshwaran M 7 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Last year paper

Posted by Piyush Kaira 7 years ago

CBSE > Class 12 > Mathematics

1 answers

Ram Kushwah 7 years ago

Please download from (use your gmail id to log in)

https://www.vedantu.com/previous-year-question-paper/cbse-previous-year-question-papers-class-12

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Cosine60 value

Posted by Sonika Sehrawat 7 years ago

CBSE > Class 12 > Mathematics

2 answers

Sujal Kumar 7 years ago

0.5

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Rishabh Goyal 7 years ago

1/2

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can y=ax+(b/alpha) be a solution of following differential equation y = x(dy/dx)+b/(dy/dx).....* if no; find the solution of differential equation (*)

Posted by Karan Garg 7 years ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

is there any change in the question paper pattern of mathematics this year 2019 that there is no 2marks questions??? can you also please tell me from where can we get the changed pattern for examination

Posted by Dharshika As 7 years ago

CBSE > Class 12 > Mathematics

1 answers

Sahil Saini 7 years ago

No change

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Can plss anyone tell me imp. Ques in maths of all chapters ??? Or plss post a link suitable link for same..

Posted by Nitin Jain 7 years ago

CBSE > Class 12 > Mathematics

1 answers

Sahil Saini 7 years ago

1.equivalent functions,binary operation,invertible function,fog and gof. 2.Ex.2.2 of invers trig.and formulas regarding to it. 3.Elementry operations,invers of a mattrix and skew and skew-sym. 4.adj.of a mattrix.amd determinant. 5.contunity,rolles theoram 6.maxima and minima,inc.and dec. Functions,tangent and normals. 7.formula regarding integration. 8.ar.under curve and b/w the curves. 9.order and degree of a diff. Eqn. 10.vector qunatity,component of vector,sclar or dot product,vector or cross product,scaler triple product,projection. 11.dir.cosine,shortest distance,angle b/w lines and plane,cartesian and vector forms of plane and lines,coplaner and intersection. 12. Ex.14.3 13.conditional prob. ,indep. Events,bionomial distribution. #Best of luck...

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How to write differential equations

Posted by Riddhi Agarwal 7 years ago

CBSE > Class 12 > Mathematics

1 answers

Nikhil Pundir 7 years ago

Firstly interpret the equation according to question then diffrentiate the equation taking y on L.H.S and rest equation on R.H.S with respect to x and try to remove the constant terms (* if there are n constant then diffrentiate n times in order to cancel out constant)

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Integration of sin(x)/sin(4x) with respect to dx ?

Posted by Nikhil Pundir 7 years ago

CBSE > Class 12 > Mathematics