CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

let no of row x no of stdnt y then atq (x+3)( y-1)=xy xy-x+3y-3=xy 3y-x=3 eq1 (x-3)(y+2)=xy xy+2x-3y-6=xy 2x-3y=6 eq2 by solve above two eq get x and y no od std = xy

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Write the condition that roots of the equation ax^2+x+b=0 are equal.

Posted by Ankit Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Shubham Deo 7 years, 8 months ago

If b²- 4ac = 0 ...i.e D=0

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Sin(A+B)=siA+sin true/fall

Posted by Nitish Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

M K 7 years, 8 months ago

False

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Jasmeen Kaur 7 years, 8 months ago

Sin(A+B)= sinA+sinB is true but Sin(A+B)= sinA+sin is false

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Brar ? 7 years, 8 months ago

False

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Aditya Kumar 7 years, 8 months ago

Falls

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Ankit Kumar 7 years, 8 months ago

Falsr

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for any positive integer n prove that n cube minus n is divisible by 6

Posted by Pravir Mishra 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Harsh Khandelwal 7 years, 8 months ago

Take A as a postive integer and b=6 for some integer q Then , A can be 6q, 6q+1,6q +2, 6q +3 ,6q +4, 6q +5 Now , put each value in n3-n And you find that after solving each is divisible by 6 so , n3-n is divisible by 6

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If (0,0), (5,0), and(x, y) are the vertices of an equilateral triangle. Find x and y

Posted by Komal Shammma 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Ankit Kumar 7 years, 8 months ago

Use distance formula for this question

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Pravir Mishra 7 years, 8 months ago

Use graphical method to solve this question or use a graph paper

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Is justification is important in construction??

Posted by Kashish Gupta 7 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Shizu Ka 7 years, 8 months ago

Justify if asked

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Animesh Singh Singh 7 years, 8 months ago

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Pravir Mishra 7 years, 8 months ago

The justification is most important construction because examiner not justify how the person made the construction and he cannot understand from where they started that for that justification the man should be edit it

2Thank You

Priyanka Nanda 7 years, 8 months ago

If questify asked to justify then justify

3Thank You

Dhani Prajapati 7 years, 8 months ago

Yes

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My all chapter of revision

Posted by Ranjan Jha 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Krishna Mishra 7 years, 8 months ago

10 saal baad

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Kashish Gupta 7 years, 8 months ago

On 28 feb

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Shivani K 7 years, 8 months ago

10th ka exam kB h.

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Find the roots of equation 16x-10/x=27

Posted by Harshit Upadhyay 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Ankit Kumar 7 years, 8 months ago

x=2. Or x=-5/16

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Ankit Kumar 7 years, 8 months ago

x=2 or x=-5/16

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Aditya Kumar 7 years, 8 months ago

X=2 and x=5/16

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A tent is in the shape of a cylinder surmounted by a conical top. If the height and diameter of the cylindrical part are 2.1 m and 4 m respectively, and the slant height of the top is 2.8 m, find the area of the canvas used for making the tent. Also, find the cost of the canvas of the tent at the rate of Rs 500 per m2.

Posted by Muhammad Huzaifa 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Aditya Kumar 7 years, 8 months ago

Height of cylindrical part= 2.1cm Slant height of conical part =2.8cm Radius of conical part =2cm Area of Coneval used = CSA of conical part +CSA of cylindrical part πrl+2πrh πr(l+h) 22/7×2(2.8+2.1) 22/7 2(4.9) 22/7×19.6 44×500 22000

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Pravir Mishra 7 years, 8 months ago

The person who giving answer please solve it solve it

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Aditya Kumar 7 years, 8 months ago

44 m2 RS 22000

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Hello everyone maths ka tayari kaisa chal Raha h

Posted by Aditya Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics