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I want questions from Chapters :- Profit and Loss , Matrix and Determinants , Probability and from Simple Interest and Compound Interest (By Tonight because day after tomorrow is my exam)

Posted by Ash Varshney 4 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

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Increasing and decreasing function

Posted by Nirjhara Rai 4 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

Nirjhara Rai 4 years, 5 months ago

Is it strictly increasing/decreasing or only increasing/decreasing

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Ash Varshney 4 years, 5 months ago

The derivative of a function may be used to determine whether the function is increasing or decreasing on any intervals in its domain. If f′(x) > 0, then f is increasing on the interval, and if f′(x) < 0, then f is decreasing on the interval. ...

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how we can solve the integration by parts questions

Posted by Shivashish Dubey In 4 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Nivrit Raj 4 years, 5 months ago

Mainly by applying product method That is :- 1 integration of 2-integration{d/DX of 1and integration of 2}

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Solve the differential equation Log(dy/dx)=ax+by.

Posted by Saurabh Mittal 4 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Vaibhav Yadav 4 years, 5 months ago

Log(dy/dx)=ax+by => dy/dx=e^{ax+by} => dy/dx=e^(ax).e^(by) => dy/e^(by)=e^(ax)dx =>e^(-by)dy=e^(ax)dx Integrating both sides, -e^(-by)/b=e^(ax)/a + c

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Reduced syllabus

Posted by Kanhiaya Garg 4 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

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Integrate a^x / b^x dx

Posted by Shruti Gupta 4 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

K S 4 years, 5 months ago

I need gf

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Sahil Kumar 4 years, 5 months ago

Answer of this question should be:- (a)^x/(b)^x{log(a)-log(b)} Method of solving for this question as integration of (a)^x= (a)^x/log(a)

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1. A is a matrix of order and B is a matrix having 6 elements .If the product AB exists, then find the order of the matrix AB.

Posted by Keerthana Keerthi 4 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Prakhar Chouksey 4 years, 5 months ago

4case possible

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A relation R in a set A is said to be an equivalence relation if R is reflexive, symmetric and transitive.

Posted by Vadda Akhilesh 4 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Sajjad Khan 4 years, 5 months ago

Yes it is said to be equivalence relation.

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Sin^3x + cos^3x integration

Posted by Shakti Arora 4 years, 5 months ago

CBSE > Class 12 > Mathematics

1 answers

Kanishk Gupta 4 years, 5 months ago

x + sinx - cosx +c

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A die is tossed thrice. Find the probability of getting an odd number at least once. (Chapter 13, exercise 13.2 NCERT CLASS 12)

Posted by Abhinav Agarwal 4 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

Abhinav Agarwal 4 years, 5 months ago

Thanks Aditi but can you please explain it..

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Aditi Mishra 4 years, 5 months ago

17/18

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Find the equatio of the tangent to the curve y=x-7/(x-2)(x-3) at th point where it cuts xaxis

Posted by Satinder Kaur Dhillon 4 years ago

CBSE > Class 12 > Mathematics

1 answers

Sia ? 4 years ago

We have given
y = x-7/(x-2)(x-3)......(i)
Let (i) cuts the x-axis at (x, 0)
then x-7/(x-2)(x-3) =0 =>x=7
the required point is (7, 0).
Differentiating equation (i) w.r.t. x, we get

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2 /3*cos x/sin^2x

Posted by Vinay Chaudhary 4 years, 5 months ago

CBSE > Class 12 > Mathematics

0 answers

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If x=a(CosQ+QsinQ),Y=a(sinQ-QcosQ) ,then find dy/dx, at Q=pie/4

Posted by Muskan Shrivastav 4 years, 5 months ago

CBSE > Class 12 > Mathematics

3 answers

Tanay Bhushan 4 years, 5 months ago

at π/4 dy/dx=1

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Tanay Bhushan 4 years, 5 months ago

dx/dQ=-asinQ+aQcosQ+asinQ dx/dQ=aQcosQ -(1) dy/dQ= acosQ+aQsinQ-acosQ dy/dQ= aQsinQ -(2) From eq first and second we have dividing eq (2) by eq(1) dy/dx=(dy/dq) /(dq/dx) So dy/dx=(aQsinQ) /(aQcosQ) dy/dx=tanQ

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Tuleshwar Sahu 4 years, 5 months ago

2+45

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How to find P(E∩F)

Posted by Naman G 4 years, 5 months ago

CBSE > Class 12 > Mathematics