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Differntiate tan inverse of square root of 1-x^2/x wrt cos invere of 2x square root of 1-x^2

Posted by Sreeraj Chandran 5 years, 8 months ago

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A discrete random variable X has the probability distribution given as below X-0.5| 1|1.5|2| P(X)- k|k^2|2k^2|k| (i) find the value of k (ii) determine the mean distribution

Posted by Dolly Goswami 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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Using differentials find the approximate value of under cube root 27

Posted by Yuvraj Ranjan 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Somya Sharma 5 years, 8 months ago

Let y=x^1/3. For all x=27. (1) y+∆y=(x+∆x)^1/3. For all ∆x=0. (2) (2)-(1) ∆y=(x+∆x)^1/3-x^1/3 (x+∆x)^1/3=∆x × dy/dx +x^1/3 27^1/3= 0×dy/dx + 27^1/3 27^1/3=3

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How to plot bar graph if it is in point eg.12.6 ,3.12

Posted by Amritha S . Nair 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Avichal Yadav 5 years, 8 months ago

just use approximation bro.. and solving equations of contraints use fractional values

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Integration x square plus X + 1 upon X + 1 whole square (x+ 2) DX

Posted by Devyani Malvi 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Shivansh Dubey 5 years, 8 months ago

Do by partial fraction

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The probability of a shooter hitting a target is 3/4.how many minimum number of times he fire so that the probability of hitting the target at least once is more than 0.99?

Posted by Ashish Sharma 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Harshit Tomar 5 years, 8 months ago

1-(1/4)^n>0.99 (1/4)^n < 0.01 For minimum value n=5

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Using integration find the area of circle X square + Y square is equal to 16 which is exterior to the parabola y square is equal to 6x

Posted by Arjun Singh 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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determinant b + a + b c + a b + c b + bc + ac is equal to a cube + b cube minus c cube - 3abc

Posted by Sunny Raj 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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Evaluat integration

Posted by Sanjay Saini 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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Guys how many books you are solving except ncert in standard maths

Posted by Alka Sharma 5 years, 8 months ago

CBSE > Class 12 > Mathematics

3 answers

Roshan Jha 5 years, 8 months ago

R.D Sharma. Cbse question is enough

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Vemula Chowdary 5 years, 8 months ago

NCERT and oswal was more than enough for maths

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Vinay Gautam 5 years, 8 months ago

Jst elements

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Find the second order derivative of the function x2 log x

Posted by Isha Patel 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Ritss ?? 5 years, 8 months ago

F(x)= x^2log x F'(x) = x( 1 + 2logx ) F''(x)= 3+2logx

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find equation of the normal line to the curve y(x-1)(x-3) -x +7 =0 at the point where it meets x axis

Posted by Divyansh Bengani 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Ritss ?? 5 years, 8 months ago

If the point meets at x axis ; point will be (x,0) Now the putting the value of y =0 and the value of x comes to be 7 Point be (7,0) Equation of curve = y (x-1) (x-3) - x+7=0 y(x^2-4x+3)=7-x Now differentiate wrt x Dy/dx(x^2-4x+3) + y( 2x-4) = -1 Now,, dy/dx= 4y-1-2xy /x^2-4x+3 Dy/dx of pt (7,0) = the slope of tangent =-1/24 Therfore the slope of normal be 24 Now the equation of normal be (y-y')=slope (x-x') Y =24(x-7) 24x-y= 168

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A die is thrown three times E:4 appears onthird toss F:6 and 5 appears on first 2 tosses

Posted by Amit Gavel 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Sakshi Mittal 5 years, 8 months ago

S=(111,112,113--------666)=216 E=(114,124------164,214,224------264, 314,324-----364,314,324---364,414,424-----464,514,524,564,614,624,----664)=36 F=(651,652,653,654,655,656)=6 Eintersectionf=(654)=1 Now, p(E/F)=p(EintersectionF)/p(F)------(1) and P(E)=36/216=1/6 P(F)=6/216=1/36 P(EintersectionF)=1/216 Then,(1) becomes ( 1/216)/(1/36)=1/6 which is required answer Thanks 4 watching

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Matrices 3.1

Posted by Suraj Kumar 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Agrim Kumar Dash 5 years, 8 months ago

bro focus on elementary transformation and theoretical part only bich ka zyada matter ni krta and please focus on determinants too

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If A is the diagonal matrix then det.A is equal to:

Posted by Rana Ji 5 years, 8 months ago

CBSE > Class 12 > Mathematics

2 answers

Jyoti Verma 5 years, 8 months ago

Zero

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Dolly Sharma 5 years, 8 months ago

Product of its element

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Number of solution of 2x + y is equal to 4 x minus 2 y is equal to 2 3 X + 5 y is equal to 6

Posted by Sahil Yadav 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Tanmay Gupta 5 years, 8 months ago

1 each for x and y.

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dy/dx +y x*3= x, solve this.

Posted by Vinay Singh 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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Differential equations

Posted by Arun Singh 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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using integrationfind the area of the curves y=|x-1| and y=3-|x|

Posted by Shiv Kumar 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Ritss ?? 5 years, 8 months ago

There are 4 equation total to plot -y=x-1;y=x-1 ;x=y-3; -x=y-3 Then find the closed area

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Integrate the function Cos(x+a)/sin(x+b) w.r.t. x

Posted by Aditya Raj Singh 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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Rolle's theorem

Posted by Payal Phore 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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Integration of sin-¹/√1-x²

Posted by Balwant Singh 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Ritss ?? 5 years, 8 months ago

Let t=1/√1-x^2 dt/dx= sin^-1(x) dt=sin^-1(x). dx Integration of t = t^2/2 Put value of t ,then = 1/2(1-x^2)

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Prove that 3^0 =01

Posted by Punit Jangir 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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class 12 chennai sahodhaya paper 2019-20 mathematics with answers

Posted by Hephzibah Sharon 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Manish Bhandari 5 years, 8 months ago

Any link where I can find that paper...?

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Solve differential equation (x2+3xy2+y2)dx-x2dy=0

Posted by Yogesh Kumar 5 years, 8 months ago

CBSE > Class 12 > Mathematics

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Write the integrating factor of differential equation (tan^-1-x)dy=(1+y^2)dx

Posted by Surendra Babu 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Subhash Jat 5 years, 8 months ago

Specify your question properly bro....

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Probability me combination vaala formula kab use kiya jata hai

Posted by Shreya Dixit 5 years, 8 months ago

CBSE > Class 12 > Mathematics

2 answers

Manish Bhandari 5 years, 8 months ago

Bahut pehle se...

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Sunayna Acharya 5 years, 8 months ago

In case of binomial distribution

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A producer has 30 and 17 units of labour and capital respectively which he can use to produce two types of goods X and Y. To produce one unit of X, 2 units of labour and 3 units of capital are required. Similarly,3 units of labour and 1 unit of capital are required to produce 1 unit of Y. If X and Y are priced at rupees 100 and rupees 20 respectively .how should the producer use his resources to maximize the total revenue. Solve it graphically.

Posted by Ayushi Chhabra 5 years, 8 months ago

CBSE > Class 12 > Mathematics

1 answers

Ritss ?? 5 years, 8 months ago

Labour ≤30 Capital≤17 cost at Good X(a) 2 3 100 Good Y(b) 3 1 20 Let goodx be a and good y be b Therefore 2a +3b ≤30 .........eq1 3a+ b ≤17 .........eq2 Z = 100a +20b Solve eq 1 and 2 the make a graph the find the maximize pt and maximize value .............☺️☺️

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The principal of a school wants to buy some geometry boxes and some pocket dictionaries for giving prizes To 15 children. He wants to buy at least 4 of each. A geometry box cost rupees 5 whereas a pocket dictionary cost rupees 10. How much of each should he buy so that expenditure does not exceed rupees 100 and at the same time he can buy the largest number of prices. Solve it graphically.

Posted by Ayushi Chhabra 5 years, 8 months ago

CBSE > Class 12 > Mathematics