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

Divide major and minor axes by 2 to get the "major radius" and "minor radius". Call these a and b. Then,r=ab/ whole root of square of b×square of cos theta+square of a×square of sin theta

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Astha Srivastava 8 years ago

It is ellipse not ecllipse

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Sec X / 1 + cosec x

Posted by Dhinesh Babbu 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Prabhjot Guraya 8 years ago

Convert it to sinx and cos x than put cosx =t

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Integrate 1/x^1/2+x^1/3

Posted by Shivanshu Yadav 8 years ago

CBSE > Class 12 > Mathematics

0 answers

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Multiple choice question

Posted by Sheetal Soni 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Prabhjot Guraya 8 years ago

ABCD

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Int. Of 1/1+cotx Full solution

Posted by Vikrant Dagur 8 years ago

CBSE > Class 12 > Mathematics

2 answers

Prabhjot Guraya 8 years ago

As given velow

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Utsab Mukherjee 8 years ago

Home » Forum » Integral Calculus » how to integrate (1)/1+cotx using... how to integrate (1)/1+cotx using substitution metod ? one year ago Answers : (1) HI Alan, here isthe solutuion, ∫ [ 1 / ( 1 + cos x/sin x ) ] dx . = ∫ [ ( sin x ) / ( sin x + cos x ) ] dx . = (1/2) • ∫ [ ( 2 sin x ) / ( sin x + cos x ) ] dx ...( Note This Step ) . = (1/2) • ∫ { [ ( sin x + cos x ) - ( cos x - sin x ) ] / ( sin x + cos x ) } dx ... This Too . = (1/2) • { ∫ 1 dx - ∫ [ ( cos x - sin x ) / ( sin x + cos x ) ] dx } . = (1/2) • { x - ∫ (1/u) du }, ... where ... u = sin x + cos x . = ( x/2 ) - (1/2)· ln | u | + C . = ( x/2 ) - (1/2)· ln | sin x + cos x | + C .................ans plz approve if you are satisfied :)

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What is the inverse of a diagonal matrix

Posted by Aniket Karn 8 years ago

CBSE > Class 12 > Mathematics

3 answers

Anita Yadav 8 years ago

A invetsre=A

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Aniket Karn 8 years ago

No its wrong

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Radhika Tyagi 8 years ago

Same as the matrix

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Find the vector equation of the plane which contains the line of intersection of the planes r.(i+2j+3k)-4=0 and r.(2i+j-k)+5=0 and which is perpendicular to the plane r.(5i+3j-6k)+8=0

Posted by Sruthi Sks 8 years ago

CBSE > Class 12 > Mathematics

2 answers

Sruthi Sks 8 years ago

Nop i couldn't find one

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Jin Kazama 8 years ago

it may had direct formula see in book

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AB is a diameter of the circle, CDis a chord equal to theradius of circle. AC and BD when extended intersect at point E. Prove that angle AEB =60°

Posted by Anurag Khare 8 years ago

CBSE > Class 12 > Mathematics

0 answers

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Integrate log (2+sinx/2-sinx) from 0 to pi/2

Posted by Padmini Soni 8 years ago

CBSE > Class 12 > Mathematics

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{[Cos2π\7. -sin2π\7] \ [sin2π|7. Cos2π\7]}^k =[1\o. 0\1 ] then find value of k?

Posted by Lalit Sh 8 years ago

CBSE > Class 12 > Mathematics

0 answers

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Write the equation of tangent drawn to the curve y=sin x at the point (0,0)

Posted by Shivani Choudhary 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Daksh Chilkoti 8 years ago

y=x

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Integration of dx/cos(x-a)cos(x-b)

Posted by Priyanshu Srivastava 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Shivanshu Yadav 8 years ago

1/sina(b-a) log(sec(x-a)/sec(x-b)

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How we solve 3D easily????? Please give a answer

Posted by Manish Kumar 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Vijay Bhatt 8 years ago

Only learn formula an d do examples

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All India 2017 paper ??

Posted by Aman Parikh 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Radhika Tyagi 8 years ago

Download oyexams app... U will get all the papers

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Solve ( 1 - x2)dy+xydy=x y2 dx

Posted by Depak Kumar 8 years ago

CBSE > Class 12 > Mathematics

0 answers

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Show that all diagonal elements of skew symtric matrix are 0

Posted by Ak V 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Jin Kazama 8 years ago

According to skew symmetric matrix, Aij=-Aji know if i = j then Aii=-Aii 2Aii=0 Aii = 0 so all diagonal elements are zero

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Is IIT-JEE examination conducted by CBSE?

Posted by Aman Kumar 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years ago

JEE mains by CBSE ....and JEE ADVANCED by IITs

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det of 2x xy- xz y 2x+z+1 xy-xz+yz-z^2 1+y 3x+1 2xy-2xz 1+y

Posted by Prerna Saini 8 years ago

CBSE > Class 12 > Mathematics

1 answers

Radhika Tyagi 8 years ago

Plz type more appropriately

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If y=cos(sin x^2),find dy\dx at x=√π\2

Posted by Sunil Mahato 8 years ago

CBSE > Class 12 > Mathematics

1 answers

.Ismat .Jamil 8 years ago

dy/DX=-sin(sinx^2).cosx^2.2x. ( using chain rule) putting value of x. dy/DX=-sin(sinπ/2).cosπ/2.2*√π/2=0 as cosπ/2=0 I.e. if in question squareroot is on whole π/2,then x2=π/2. {if root is only on π x2= π/4 answer -(sin(1/√2)√2.π )/2}

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65=65

Posted by Danny Richard 8 years ago

CBSE > Class 12 > Mathematics