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

No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

Det _2 0 0

Posted by Garrepally Raju 4 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

If y = sin inversex ÷√1- xsquare then show that (1- xsquare)dsquarey÷dxsquare - 3xdy÷dx - y = 0

Posted by Ram Prasad 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Harsh Shukla 4 years, 4 months ago

Find d²y/dx² then take ✓1-x² to LHS and square that. Then on RHS 3x will come and with that the value of dy/dx further you will solve and you will get your answer.

ANSWER

P(x) x^4 -5x +6 g(x) 2-x^2 To find the value of x

Posted by Roseni K Y 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Khushi....? ??‍? 4 years, 4 months ago

What we have to do....

ANSWER

log(cos(epower of x)

Posted by Shubham Chougale 4 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Mr. Badmash 4 years, 4 months ago

Let, y = log(cos e^x) dy/dx = 1/cos e^x . d/dx(cos e^x) dy/dx = 1/cos e^x.(-sin e^x).d/dx(e^x) dy/dx = 1/cos e^x.(-sine^x).e^x dy/dx = -e^x.tan e^x

Khushi....? ??‍? 4 years, 4 months ago

On differentiating we get -e^xtan(e^x)

ANSWER

What is rolle's theorem?

Posted by Kanishk Gupta 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Meghna Thapar 4 years, 4 months ago

Rolle's theorem states that if a function f is continuous on the closed interval [a, b] and differentiable on the open interval (a, b) such that f(a) = f(b), then f′(x) = 0 for some x with a ≤ x ≤ b.

All 3 conditions of Rolle's theorem are necessary for the theorem to be true:

f(x) is continuous on the closed interval [a,b];
f(x) is differentiable on the open interval (a,b);
f(a)=f(b).
The conclusion of Rolle’s theorem is that if the curve is continuous between two points x = a and x = b, a tangent can be drawn at each and every point between x = a and x = b and functional values at x =a and x = b are equal, then there must be atleast one point between the two points x = a and x = b at which the tangent to the curve is parallel to the x-axis.

ANSWER

Which chptr. in maths is tough...?

Posted by Bhargav Rajput? 4 years, 4 months ago

CBSE > Class 12 > Mathematics

5 answers

Bhargav Rajput? 4 years, 4 months ago

From JEE perspective???

Arif Khan 4 years, 4 months ago

Not any one

Sohan G 4 years, 4 months ago

integration

Bhargav Rajput? 4 years, 4 months ago

I m asking that majority students fil toughness in....?

Mishti ???? 4 years, 4 months ago

It depend on u dear?? Everyone choice is different from other one ?? Regards.??

ANSWER

Evaluate [i^ j^ k^] + [j^ k^ i^] + [k^ i^ j^]

Posted by Bharath Kishore 4 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

if the coordinates of the midpoints of the sides of a triangle are (1,1),(2,-3) and (3,4), then the centroid of the triangle is

Posted by Sohan G 4 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

(0,-1,4) and parallel to straight line

Posted by Harman Preet 4 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Why we use Integration?

Posted by Ayush Vishwakarma?? 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Khushi....? ??‍? 4 years, 4 months ago

Just as definite integrals can be used to find the area under a curve, they can also be used to find the area between two curves. To find the area between two curves defined by functions, integrate the difference of the functions. ... In this section, we use definite integrals to find volumes of three-dimensional solids.

ANSWER

Write 5 4 3 2 6 7 3 5 4 i i i i     in the form of a + ib and find its square root.

Posted by E Dharshan 4 years, 4 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

The no of terms in the expansion is (2+4x+2x^2)^10 is

Posted by Dhivya Sankar 4 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Harsh Shukla 4 years, 4 months ago

21 AS NO. OF TERMS = 2n + 1 where n is even power of the expansion.

Ankit Singh 4 years, 4 months ago

Total no of terms will be --- 21

ANSWER

if this system is denoted by AX=B then for a=1 the value of A^-1

Posted by Sanjay Putta 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 4 years, 4 months ago

This system????????

ANSWER

Steps of first derivative method in application of derivative

Posted by Siddheshwar Nath Pandey 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 4 years, 4 months ago

Dear u can find it in cbse revision notes in this app Regards. ??

ANSWER

Integration of substitution

Posted by Nishant Yadav 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Khushi....? ??‍? 4 years, 4 months ago

In calculus, integration by substitution, also known as u-substitution or change of variables, is a method for evaluating integrals. Direct application of the fundamental theorem of calculus to find an antiderivative can be quite difficult, and integration by substitution can help simplify that task.

ANSWER

How to find whether a function is onto

Posted by Aswathi Raveendran 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Khushi....? ??‍? 4 years, 4 months ago

A function f:A→B is onto if and only if there exists its right inverse, that is, a function g:B→A such that f∘g=idB, where idB(x)=x for all x∈B.

ANSWER

Miscellaneous exercise 8 question

Posted by Ananya Purwar 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 4 years, 4 months ago

Chapter which one dear??????

ANSWER

All trigonometry formulas 11th,12th,10th

Posted by Vijay Sharma 4 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Ankita ?? Arpita☺️ 4 years, 4 months ago

Only google can help you?

Mishti ???? 4 years, 4 months ago

Google dear???

ANSWER

How we differentiate w.r.t x (3x² - 9x + 5)⁹

Posted by Jaspal Kaur 4 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Subhankar Sharma 4 years, 4 months ago

3(2x-3)

Khushi....? ??‍? 4 years, 4 months ago

We have differentiate due to log....take log both side and then diffrentiate...hope so it helps u if not I can give you the answer....

ANSWER

Is * a binary opertion defined on R by A*b =a+b/4

Posted by Santosh Karlekar 4 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Khushi....? ??‍? 4 years, 4 months ago

Binary operation syllabus me nii tha isiliye nii pta....?

Himanshu Mittal 4 years, 4 months ago

Nhi pta

ANSWER

If cos-1x>sin-1x then x belong s to the interval____

Posted by Ankita ?? Arpita☺️ 4 years, 4 months ago

CBSE > Class 12 > Mathematics

3 answers

Mishti ???? 4 years, 4 months ago

Its ok dear??

Ankita ?? Arpita☺️ 4 years, 4 months ago

Thank you?

Mishti ???? 4 years, 4 months ago

Solution~~ sin^(-1)x >cos^(-1)x arcsin(x) > arccos(x) x > sin(arccos(x)) x > √(1 − x²) (1 - x²) ≥0 x² ≤ 1 |x| ≤ 1 x ≤ 1 and x ≥ -1. <-----------------------------------(domain for right hand side) ______________________________________________________________ x > √(1 − x²) x² > 1 - x² 2x² > 1 x² >1/2 |x| > 1/√(2) x > 1/√(2) and x < -1/√(2) _________________________________________________________ The domain that is true for both is 1/√(2) < x ≤ 1. Regards. ??

ANSWER

What is the result of mean value theorem? What will I get to know after applying mean value theorem?

Posted by Kanishk Gupta 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 4 years, 4 months ago

Answer~~ : The Mean Value Theorem is one of the most essential theoretical tools in Calculus. It also says that if f(x) is definite and continuous on the interval [a,b] and differentiable on (a,b), in that case there is at least one number c in the interval (a,b) (that is a < c < b) such that. Important Conclusions ⇒ If f'(x) = 0 for all x in an interval (a,b), then f(x) is constant in the interval (a,b) ⇒ If f'(x) = g'(x) for all x in an interval (a,b), then g(x) = f(x) + c. Regards. ??

ANSWER

Can we find a matrix using inverse of a matrix?

Posted by Eshika Chaudhary 4 years, 4 months ago

CBSE > Class 12 > Mathematics

4 answers

Mishti ???? 4 years, 4 months ago

Its okk dear???

Eshika Chaudhary 4 years, 4 months ago

Thanks so muchh?❤

Mishti ???? 4 years, 4 months ago

By multiplying the inverse by itself u got the matrix dear. Regards. ??

Mishti ???? 4 years, 4 months ago

Yup! Why not dear ??

ANSWER

check the injectivity and surjectivity f:N_N given by f(x)=x**2

Posted by Siddhu Sravan 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 4 years, 4 months ago

Solution~~ f : N → N given by f (x) = x² We can see that for x, y ϵ N, f(x) = f(y) ⇒ x² = y² ⇒ x = y ⇒ f is injective. Now, let 2 ϵ N. But, we can see that there does not exists any x in N such that f(x) = x² = 2, therefore, f is not surjective. Therefore, function f is injective but not surjective. Regards. ??

ANSWER

(2/1-3/2)(x/y)=1/3 solve for x

Posted by Komalpreet Kaur Razada 4 years, 4 months ago

CBSE > Class 12 > Mathematics

1 answers

Umang Singh 4 years, 4 months ago

(2/1‐3/2 ) (x/y)=1/3 —> x/2y=1/3 x=2y/3

ANSWER

Derivative of all inverse trigonometric functions

Posted by Manonit Aind 4 years, 4 months ago

CBSE > Class 12 > Mathematics

3 answers

Mishti ???? 4 years, 4 months ago

Refer to testbook dear.

Khushi....? ??‍? 4 years, 4 months ago

Baki ka derivation hota h bada h check the NCERT book....

Khushi....? ??‍? 4 years, 4 months ago

Sin^-1x= 1/root x^2+1 Cos^-1x= -1/root x^2+1 Tan^-1x= 1/x^2+1

ANSWER

Integrate: cos^3x.e^logsinx

Posted by Pranav Gudugunti 4 years, 4 months ago

CBSE > Class 12 > Mathematics

2 answers

Khushi....? ??‍? 4 years, 4 months ago

-cos^4x/4+c.....

Mishti ???? 4 years, 4 months ago

Solution~~ I ={cos^3xe^logsinx dx ={cos^3x sinx dx. (e^logx=x) Let cosx =t =sinxdx=dt I= --- {t^3 dt= -- {t^4/4 + C= --cos ^4x/4 +C

ANSWER

8000√

Posted by Ayush Kumar 4 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

Khushi....? ??‍? 4 years, 5 months ago

Ayush Kumar aapka solution toh sahi fir question kyu puchha.....

Ayush Kumar 4 years, 5 months ago

8000 √ answer 89.4427191

ANSWER

What is Derivative of sin x. with respect to log x.

Posted by Tushar Aggarwal 4 years, 5 months ago

CBSE > Class 12 > Mathematics

3 answers

Khushi....? ??‍? 4 years, 4 months ago

Mishti we have to differentiate w.r.t log x..... you have differentiated w.r.t. x.....only.....

Mishti ???? 4 years, 4 months ago

Cos(x) Regards.??

Khushi....? ??‍? 4 years, 5 months ago

xcosx

ANSWER

LCM of x-2ANDx+2

Posted by Tushar Sharma 4 years, 5 months ago

CBSE > Class 12 > Mathematics

3 answers

Khushi....? ??‍? 4 years, 4 months ago

Lcm ka mtlb to lowest commom multiple hota h na....to 1 hua na Abhishek...

Abhishek Kumar Yadav 4 years, 4 months ago

x-2andx+2??

Khushi....? ??‍? 4 years, 5 months ago

1

ANSWER

Page 62 of 481

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App