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

let the numerator = x let the denomination =y case 1. fraction becomes 9/11when 2 is added to both num and deno x+2/y+2 = 9/11 cross multiple it you will find a equation make it 1st equation.. case 2. x+3/y+3=6 do cross multiple and make equation. after that solve it by any method which you like elemination or substitution

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If PA and PB are tangents to a circle with centre O such that angle APB = 70° then angleAOB is (a) 140° (b) 110 (c) 35° (d) 70

Posted by Vaibhav Pandey 5 years ago

CBSE > Class 10 > Mathematics

2 answers

Raj Singh 5 years ago

35 hoga

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Monu Yadav 5 years ago

B 110

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The bases of the FLOUR, SUGAR and TEA containers have sides of lengths 14 cm, 10 cm and 6 cm respectively. b-i) The height of the FLOUR container is 17.5 cm. Calculate the height of the SUGAR container. b-ii) The area of the lid of the COFFEE container is \\frac{9}{16} of the area of the lid of the SUGAR container. Calculate the length of the side of the base of the COFFEE container. b-iii) Calculate the ratio Volume of the TEA container : volume of the SUGAR container

Posted by Amarpal Singh 5 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

8744944

Posted by Vishwaraj Padhiyar 5 years ago

CBSE > Class 10 > Mathematics

2 answers

Vedika Kengale 5 years ago

Please post reasonable question and not stupid one

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Vedika Kengale 5 years ago

It's the number

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ANSWER

Which theorem is this:- If a line divides any two sides of the triangle in the same ratio, then the line is parallel to the third side.

Posted by Anushka Mittal 5 years ago

CBSE > Class 10 > Mathematics

5 answers

Vaibhav Pandey 5 years ago

Converse of BPT

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Mamta ... 5 years ago

Bpt

1Thank You

Adriyan Gupta 5 years ago

Mid - term theorem

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Aman Thind 5 years ago

bpt (basic proportionality theorem)

3Thank You

Vivek Kumar 5 years ago

Thales theor

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ANSWER

If 1+sin2=3sincos than prove that tan=1ir1/2

Posted by Saurav Thakur 5 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What is the condition, to construct a pair of tangents from a point P to the circle 'O' p radius 5cm ? Maths

Posted by Sridevi Av 5 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

find the volume and csa of the largest right circular cone that can be cut out of a cube of whose edge is 10cm. Please Help Anyone

Posted by Shashwat Chaturvedi 5 years ago

CBSE > Class 10 > Mathematics

4 answers

Shashwat Chaturvedi 4 years, 11 months ago

Thanks Adithya Dev A?

1Thank You

Sridevi Av 5 years ago

Thanks

1Thank You

Adithya Dev A 5 years ago

Substitute to formula :- Volume = 1/3*πr^2h | CSA = πrl.

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Adithya Dev A 5 years ago

r = 5 cm | h = 10 cm | l = √h^2 + r^2 = √125 = 5√5 cm.

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In an equilateral triangle ABC, D is a point on side BC such that BD=1/3BC . Prove that 9AD square =7AD square

Posted by Muskan Bhagat 5 years ago

CBSE > Class 10 > Mathematics

3 answers

Raj Singh 5 years ago

Nhi aise hoga construction karna padega AE perpendicular BC. Than by Pythagoras theorem solve it and put value.ok

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Raunak Ranjan 5 years ago

Let AB,BC,AC=x So,bd=x/3 And by Pythagoras theorem and find

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Guna Sekher Kadali 5 years ago

Ylt

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ANSWER

2xsquare+kx+3=0 Find the values of k for each of the following quadratic equation so that they have two equal roots

Posted by Shraddha Sahu 5 years ago

CBSE > Class 10 > Mathematics

1 answers

Sarangi Jayakumar 5 years ago

p(x)=2x2+kx+3 b2-4ac=0 (k)2-4×2×3=0 k2-24=0 k2=24

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The taxi fare after each kilometre, when the fare is Rs.15/- for first kilometre and Rs.8/- for each additional kilometre, does not form an AP as total fare(in Rs.) after each kilometre is 15,8,8,8,...... Is the statement true? Give reasons.

Posted by Ayushi Porwal 5 years ago

CBSE > Class 10 > Mathematics

1 answers

Ravishankar Bharti 5 years ago

No,because fare for each Km is added by Rs8

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ANSWER

Use euclid division

Posted by Aakriti Singh 5 years ago

CBSE > Class 10 > Mathematics

1 answers

Vedika Kengale 5 years ago

Euclid's division lemma

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ANSWER

From the following frequency distribution prepare the more than o give

Posted by Ananya Ananya 5 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Do all question in basic math paper come from NCERT #manav

Posted by Shristi Giri 5 years ago

CBSE > Class 10 > Mathematics

2 answers

Mamta ... 5 years ago

The paper of basic n standard either will come from NCERT or from exemplar. So we just need to do 2 things that is to solve exemplar n NCERT.

1Thank You

Dhruv .. 5 years ago

Yes ,I would suggest that before solving the exercises ,just once solve the examples questions given before every exercises of NCERT . NCERT exercises +NCERT examples questions are enough for maths basic.

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prove the identity, if root 3 cot² theta -4cot theta + root 3 =0, then find the value of cot²theta +tan²theta

Posted by Ravneet Randhawa 5 years ago

CBSE > Class 10 > Mathematics

2 answers

Aman Singh 5 years ago

Good

0Thank You

Rohan Kumar 5 years ago

Given that:- 3cot²θ - 4cotθ +√3=0 To find:- Cot²θ+ tan²θ=? Now, (√3cotθ)² -4cotθ+√3=0 =(√3cotθ)² -3cotθ-1cotθ+√3=0 =√3cotθ(cotθ-√3) -1(cotθ-√3)=0 =(√3cotθ-1)(cotθ-√3)=0 =√3cotθ-1=0 OR =cotθ-√3=0 Cotθ =1/√3 .....(i) OR cot=√3 .....(ii) Now, By equation (i), when cot θ=1/√3 Cot²θ+tan²θ = [(1/√3)²+(√3)²] =[1/3+3] =10/3 _______(iii) By equation (ii), When cotθ=√3 Cot²θ+tan²θ =[(√3)²+(1/√3)²] =[3+1/3] =10/3 ________(iv) Hence, in both cases value of {Cot²θ+tan²θ} is same that is 10/3.

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1/(1+sin theta)+1/(1-sin theta)

Posted by Saurabh Shankar 5 years ago

CBSE > Class 10 > Mathematics