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

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. ??

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

Posted by Kanishk Gupta 5 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 5 years, 3 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. ??

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Can we find a matrix using inverse of a matrix?

Posted by Eshika Chaudhary 5 years, 3 months ago

CBSE > Class 12 > Mathematics

4 answers

Mishti ???? 5 years, 3 months ago

Its okk dear???

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Eshika Chaudhary 5 years, 3 months ago

Thanks so muchh?❤

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Mishti ???? 5 years, 3 months ago

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

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Mishti ???? 5 years, 3 months ago

Yup! Why not dear ??

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

Posted by Siddhu Sravan 5 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 5 years, 3 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. ??

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

Posted by Komalpreet Kaur Razada 5 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Umang Singh 5 years, 3 months ago

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

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Derivative of all inverse trigonometric functions

Posted by Manonit Aind 5 years, 3 months ago

CBSE > Class 12 > Mathematics

3 answers

Mishti ???? 5 years, 3 months ago

Refer to testbook dear.

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Khushi....? ??‍? 5 years, 3 months ago

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

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Khushi....? ??‍? 5 years, 3 months ago

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

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Integrate: cos^3x.e^logsinx

Posted by Pranav Gudugunti 5 years, 3 months ago

CBSE > Class 12 > Mathematics

2 answers

Khushi....? ??‍? 5 years, 3 months ago

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

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Mishti ???? 5 years, 3 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

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8000√

Posted by Ayush Kumar 5 years, 3 months ago

CBSE > Class 12 > Mathematics

2 answers

Khushi....? ??‍? 5 years, 3 months ago

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

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Ayush Kumar 5 years, 3 months ago

8000 √ answer 89.4427191

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

Posted by Tushar Aggarwal 5 years, 3 months ago

CBSE > Class 12 > Mathematics

3 answers

Khushi....? ??‍? 5 years, 3 months ago

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

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Mishti ???? 5 years, 3 months ago

Cos(x) Regards.??

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Khushi....? ??‍? 5 years, 3 months ago

xcosx

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LCM of x-2ANDx+2

Posted by Tushar Sharma 5 years, 3 months ago

CBSE > Class 12 > Mathematics

3 answers

Khushi....? ??‍? 5 years, 3 months ago

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

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Abhishek Kumar Yadav 5 years, 3 months ago

x-2andx+2??

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Khushi....? ??‍? 5 years, 3 months ago

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What is idempotent and nilpotent?

Posted by Saumya Singh 5 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Khushi....? ??‍? 5 years, 3 months ago

Idempotent means "the second power of A (and hence every higher integer power) is equal to A". Nilpotent means "some power of A is equal to the zero matrix".

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In NCERT exercise 4.5 que no 4 class 12

Posted by Chirag Gautam 5 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Mishti ???? 5 years, 3 months ago

U can find the solutions of ncert book in this app dear??

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Graph of sin x

Posted by Lalit Tanwar 5 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Khushi....? ??‍? 5 years, 3 months ago

Refer google...

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Let z be the set of integer show that the relation R={(a,b)/a+b is even a,b€z} is an equivalence relation

Posted by Sumathi R B 5 years, 3 months ago

CBSE > Class 12 > Mathematics

0 answers

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Cbse has deducted anything from our syllabus?????

Posted by Bhoomi ☺️?? 5 years, 3 months ago

CBSE > Class 12 > Mathematics

5 answers

Prema Tamang 5 years, 3 months ago

Nooo

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Aashrity .... 5 years, 3 months ago

Nooo

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Ayush Vishwakarma?? 5 years, 3 months ago

Mere ko toh ni lagta aisa hoga..

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Khushi....? ??‍? 5 years, 3 months ago

Hope so...

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Nirmal Sharma 5 years, 3 months ago

Yaaaa

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if f is onto , g is onto then gof is also onto ...How ??

Posted by Rajeev Gupta 5 years, 3 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Decimals are what

Posted by Sanjeev Pundir 5 years, 3 months ago

CBSE > Class 12 > Mathematics

1 answers

Khushi....? ??‍? 5 years, 3 months ago

The decimal numeral system is the standard system for denoting integer and non-integer numbers. It is the extension to non-integer numbers of the Hindu–Arabic numeral system. The way of denoting numbers in the decimal system is often referred to as decimal notation.

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Sin^-1 x +sin^-1y=

Posted by Ruheen Sk 5 years, 3 months ago

CBSE > Class 12 > Mathematics

2 answers

Ayush Vishwakarma?? 5 years, 3 months ago

Why are you take formula change into other term which is given like tan , cos etc and apply the addition formula like tanA+tanB.... etc

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Gaurav Seth 5 years, 3 months ago

sin^-1x + sin^-1y = sin^-1 (x √1-y² + y √1-x²)

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Sin^-1 ( sin theta ) = theta for all

Posted by Ruheen Sk 5 years, 3 months ago

CBSE > Class 12 > Mathematics

2 answers

Ayush Vishwakarma?? 5 years, 3 months ago

Theta € [-pi/2,pi/2]. That's good khushi this is impotant to take range of I.T.F in cbse board examination.

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Khushi....? ??‍? 5 years, 3 months ago

Theta is the answer and also... theta € [-pi/2, pi/2]...

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What do you mean by comparable matrices

Posted by Deeksha Baranwal 5 years, 3 months ago

CBSE > Class 12 > Mathematics

2 answers

Kareena Yadav 5 years, 3 months ago

Two compareable matrics are those whose order are equal and the corressponding elements are equal

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Mishti ???? 5 years, 3 months ago

Two matrices A & B are said to be comparable, if they have the same order (i.e., number of rows of A & B are same and also the number of columns). Regards. ????

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Let f:R-R be defined by f(x)=x²+1 then pre-image of -3 is

Posted by Akhilesh Naithani 5 years, 3 months ago

CBSE > Class 12 > Mathematics

2 answers

Khushi....? ??‍? 5 years, 3 months ago

The answer is phi its value cannot be defined because root of -4 is imaginary....and function is not possible hence -3 has no pre image.... For more clear explanation.... f(x)=x^2+1... For pre image of -3 f(x)=-3...solving this we get root -4 which is not possible....

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Ayush Vishwakarma?? 5 years, 3 months ago

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Define matrix

Posted by Saurav Sharma 5 years, 3 months ago

CBSE > Class 12 > Mathematics

3 answers

Khushi....? ??‍? 5 years, 3 months ago

In mathematics, a matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. For example, the dimension of the matrix below is 2 × 3, because there are two rows and three columns: Provided that they have the same size, two matrices can be added or subtracted element by element.

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Ayush Vishwakarma?? 5 years, 3 months ago

Matrix is a rectangular array in which the data are arranged by many types. The array is defined as collection of numbers.you can also say that the sum of symmetric and skew symmetric is called matrix.

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Supriya Tiwari 5 years, 3 months ago

Matrix is an ordered rectangular array of numbers or functions.

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If two events A and B are such that P(A')=0.3, P(B)=0.4 and P(A n B') =0.5 . Find P(B/(A' n B')).

Posted by Durgesh Srivastava 5 years, 3 months ago

CBSE > Class 12 > Mathematics