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

Function is not one one because 1is not equal to -1 but f(1) is equal to f (-1) Also, function is not onto because range of this function is positive real numbers and codomain of this function is both positive and negative real number.

2Thank You

ANSWER

Let function are real number to real number be the function Defined by FX equal to 1 by 2 minus cos x x belongs to real number then find the range of the function

Posted by Subhajeet Behera 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find dy by dx ,if x to the power of y= y to the power of x

Posted by Abhishek G M 3 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Shikha Singh 3 years, 6 months ago

Take log both sides Log(y)=ylog(x) And then solve If you require online crash course an minimum fees of 1500 .ping me up

2Thank You

ANSWER

If matrix A=[cos2x sin2x , -sin2x cos2x],find A^2

Posted by Aman Gautam 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate w.r.t. x, (5x^2+8x+4)^-1/2

Posted by Kajal Kumari 3 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Vihar L 3 years, 6 months ago

8Thank You

ANSWER

How many hours does one has to study?

Posted by Prabhat Yadav 3 years, 6 months ago

CBSE > Class 12 > Mathematics

5 answers

Kartik Chhabra 3 years, 6 months ago

Time doesn't matter Just take a topic a day and study on that

0Thank You

Nik . 3 years, 6 months ago

1 hour

1Thank You

Prince Prabhat 3 years, 6 months ago

No need to count hours just focus on content you learnt

1Thank You

Riya Sharma 3 years, 6 months ago

1Thank You

Ratinderpal Singh 3 years, 6 months ago

Minimum 8 hrs

1Thank You

ANSWER

Let S = {1,2,3,4}. What is the total number of unordered pairs of disjoint subsets of S?

Posted by Aditi Kawat 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Is matrix A = | 0 -1 2 , 1 0 -3 , -2 3 0 | symmetric or skew symmetric ? Give a reason

Posted by Dharamveer Sain 3 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Satyam Suman 3 years, 6 months ago

Skew symmetric

0Thank You

Arman Gupta 3 years, 6 months ago

THIS MATRIX IS SKEW SYMMETRIC BECAUSE Aij = -(Aji)

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ANSWER

The elements of a 3 × 4matrix are given by ??? = 1/2 |−3? + ?|.write the value of ?32 − ?14

Posted by Naman Kumawat 3 years, 6 months ago

CBSE > Class 12 > Mathematics

5 answers

Abhijeet Sahoo 3 years, 6 months ago

0Thank You

Satyam Suman 3 years, 6 months ago

1Thank You

Tec Om 3 years, 6 months ago

arman is correct answer is 3

1Thank You

Arman Gupta 3 years, 6 months ago

here A32 = 1/2|(-3)*3+2| = 1/2|-7| = 7/2 A14 = 1/2|(-3)*1+4| = 1/2|1| = 1/2 now, A32 - A14 = 7/2 - 1/2 = 3 ====>FINAL ANSWER

1Thank You

Sweta Kumari 3 years, 6 months ago

-3/7

1Thank You

ANSWER

Find the domain and range in each case 1) R1={(a,1/a):a belongs to N and 1 ≤ a ≤5 } please answer this question

Posted by Rohit Rohit 3 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Arman Gupta 3 years, 6 months ago

DOMAIN = {1,2,3,4,5} RANGE = {1,0.5,0.33,0.25,0.2}

1Thank You

Durgesh Kumar 3 years, 6 months ago

Domain-{1} Range-{1}

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ANSWER

Ajay wants to construct a rectangular fish tank for his new house that can hold 72 feet cube of water the top of the tank is open the width of the tank will be 5 feet but the length and height are variable building the tank post rupees 10 per square foot for the base and rupees 5 per square foot for the side based on the above information Anshu the following question first in order to make a least expensive fish tank Ajay need to minimise its a volume BBC culture fishery RD coast II total cost of tank as a function of h can be represented as a pH is equal to 50 h -1 44 - 7 28 b c h bi equal to 50 h - 140 48 - 7 28 near me is equal to 50 + 144 h + 728 de-ch is equal to 50 h + 144 + 7.2 change of h is a 3 by 3 5 b0 infinite c08 d03 value at which Ch is minimum is a root 14.4 b-221 22c route 14.5 the 12.5 the course to feast expensive 10th is rupees 500 B2B 50 2.404 Z rupee 520 3.47 6600 105

Posted by Rabab Bedi 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

A night before sleep grandfather they were possible to Rohan and Payal the probability of thousand the specific puzzle independently by Rohan and Payal are 1 by 2 and 1 by 3 respectively based on the above information and felt a polling first the probability that both solve the puzzle is a one way to be 13 C 1-6 Di 5 by 6 second probability that person is solved by Rohan but not by Payal is a 12 b 1 by 3 c23 the five basic probability that exactly one of them solve the puzzle is 1 by 3 B1 B2 c16 the five basic probability that none of them solve the puzzle is one by two b13 C2 battery D none of these

Posted by Rabab Bedi 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

How many hour study of each subject daily Not says it depends on you..

Posted by Ashutosh Tiwari 3 years, 6 months ago

CBSE > Class 12 > Mathematics

5 answers

Vaibhav Shukla 3 years, 6 months ago

3,2,2 hour

0Thank You

Anurag Saral 3 years, 6 months ago

It depends on you actually...

0Thank You

Mohit Bansal 3 years, 6 months ago

14 to 15 hours to crack IIT JEE Or Mains 10 to 11 hours for Board Exam

0Thank You

Ankit ?? Kumar 3 years, 6 months ago

At least 10 hours in a day to become topper and 6 hour for average and 3 hour for pass

0Thank You

Heena Bilam 3 years, 6 months ago

1 hour to each subject is important

1Thank You

ANSWER

Find the imagebof the point (1,-2,1) in the line x-2/3 = y+1/-1 = z+3/2

Posted by Elavarasan Appu 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Let W denote the set of words in the English dictionary. Define the relation R by R ={(x,y)《W × W such that x and y have at least one letter is common }. Show that this relation R is reflexive and symmetric but not transitive.

Posted by Durgesh Kumar 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Integrate (cosax-cosbx)/(sinax+sinbx). just tell me how to start solving this. plz help needed ;-;

Posted by Anurag Saral 3 years, 6 months ago

CBSE > Class 12 > Mathematics

4 answers

Anurag Saral 3 years, 6 months ago

Thanks Arman Gupta... :D

2Thank You

Arman Gupta 3 years, 6 months ago

JUST APPLY THE IDENTITY OF COS A MINUS COS B IN NUMERATOR AND SIN A PLUS SIN B IN DENOMINATOR THEN IT WILL GO ON.....

1Thank You

Anurag Saral 3 years, 6 months ago

;-;

3Thank You

Anurag Saral 3 years, 6 months ago

still waiting -_-

3Thank You

ANSWER

12 class ho jayegi iss saal ya nhi??

Posted by Dhananjay Rajput 3 years, 6 months ago

CBSE > Class 12 > Mathematics

5 answers

Satyam Suman 3 years, 6 months ago

I dunno know

1Thank You

Anurag Saral 3 years, 6 months ago

may be

0Thank You

बेबि बीच 3 years, 6 months ago

let's pray

0Thank You

Anurag Saral 3 years, 6 months ago

shayad

0Thank You

Nik . 3 years, 6 months ago

Yes

2Thank You

ANSWER

Equation of the plane E which contains the line L : x =y − 3/4=z − 5/3, and is perpendicular to the plane, E1 = 2x + 7y − 3z = 1 , is

Posted by Aryan Chogale 3 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Nik . 3 years, 6 months ago

9x-3y-z+14=0

1Thank You

Satyam Suman 3 years, 6 months ago

9x-3y-z+14=0

0Thank You

ANSWER

Equation of the plane containing the line L1 :x − 1/3=y + 6/4=z + 1/2, parallel to the line L2 :x − 2/2=y − 1/−3=z + 4/5, is 26x − 11y − 17z = p , where : p= A) 109 B) 110 C) 111 D) 112

Posted by Aryan Chogale 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Let R be the set of all real numbers . If f:R-R is giev by f(x)=3x + 2, for all x belongs to R and g:R-R is given by g(x)= x/x^2 + 1 , for all x belongs to R find the following f°g, g°f, f°f and g°g .

Posted by Arnab H. 3 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Arnab H. 3 years, 6 months ago

Thank you so much . ??

1Thank You

Arpit Airen 3 years, 6 months ago

Here I will tell you how to find F0g & hope you will find the remaining.

f0g is pronounced as f of g(x)

f0g = f{g(x)} = f {{tex}x \over x^2 +1{/tex}}

We have put the value of g(x) given in question.

Now let us assume that {tex}{x \over x^2 +1} = y{/tex}

Therefore, f {{tex}x \over x^2 +1{/tex}} = f{y}

as f{x} = 3x+2

f{y} = 3y +2

Therefore

f{{tex}{x \over x^2 +1}{/tex}} = 3 * {tex}{x \over x^2 +1}{/tex} + 2

=> f0g = {tex}{3x \over x^2 +1} +2 {/tex}

On Solving

f0g = {tex}{3x + 2x^2 +2\over x^2 +1}{/tex}

Answer.

1Thank You

ANSWER

(a+b)²=?

Posted by Khusbu Pradhan 3 years, 6 months ago

CBSE > Class 12 > Mathematics

3 answers

Aníl Kumar 3 years, 6 months ago

(a+b)^2=(a+b)(a+b)

0Thank You

Shivani Kumawat 3 years, 6 months ago

A²+B²+2AN

0Thank You

Tanish Rao Sahab 3 years, 6 months ago

(a+b)²=a²+b²+2ab

1Thank You

ANSWER

What is the defination of like vector or unlike vector

Posted by Narayan Sirohi 3 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Dhananjay Rajput 3 years, 6 months ago

Vector in same direction called like vectors and the vector in different direction called unlike vectors

0Thank You

ANSWER

Are f and g both necessarily onto, if God is onto?

Posted by Diya Varghese 3 years, 6 months ago

CBSE > Class 12 > Mathematics

0 answers

ANSWER

Find matrices A and B if 2A-B=[(6 -6 0) (-4 2 1) ] and 2B+A= [(3 2 5) (-2 1 7) ]

Posted by Roshni Biswal 3 years, 6 months ago

CBSE > Class 12 > Mathematics

1 answers

Shivani Kumawat 3 years, 6 months ago

A=[(3 -2 1)(-2 1 -1)],,,, B=[(0 2 2)(0 0 -3)]

1Thank You

ANSWER

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