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

Draw circle with centre O and radius OA = 5 cm, .
Mark another point B on the circle such that ∠AOB = 120°, supplementary to the angle between the tangents. Since the angle between the tangents to be constructed is 60°.

∴ ∠AOB = 180° – 60° = 120°.

3.Construct angles of 90° at A and B and extend the lines so as to intersect at point P.

4. Thus, AP and BP are the required tangents to the circle.

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Formula of area of quadrant of a circle?

Posted by Mudit Sharma 4 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Shivansh Singh 4 years, 10 months ago

1/4 area of circle

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Aditya Singh 4 years, 10 months ago

1 by 4 pi r Square

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Your Name 4 years, 10 months ago

If any have doubts ask from me of all sibjects

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Your Name 4 years, 10 months ago

1/4 πr^2

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Chp - Introduction to trigonometry Find the value of 9 sec ² Φ - 9 tan²Φ

Posted by Vishnupriya Ravi 4 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

A B 4 years, 10 months ago

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Your Name 4 years, 10 months ago

9 is correct answer..

2Thank You

Ananya Sharma 4 years, 10 months ago

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Raghav Rawat 4 years, 10 months ago

2Thank You

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Find the value of X, when in the A. P give below 2+6+10..........+X=1800

Posted by Gautam Sinha 4 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Gautam Sinha 4 years, 10 months ago

Okk bro to advise

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Pardhan Ji 4 years, 10 months ago

Aapka math kamjor hai to isliye iss question ka answer khud hi dhundo aur thoda dimak lagao

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if sinA=cosA , than tanA is equal to:- (a) 1 (b)-3 (c)-1 (d)2

Posted by Sukhveer Brar 4 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Rubi Kumari 4 years, 10 months ago

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Your Name 4 years, 10 months ago

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Gautam Sinha 4 years, 10 months ago

Ans 1

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Manya Mahajan 4 years, 10 months ago

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Ananya Tiwari 4 years, 10 months ago

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0.2x+0.3y=1.3,0.4x+0.5y=2.3 Solve the following pair of liner equation by the substitution method

Posted by Syed Irfan 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 4 years, 10 months ago

Answer:

x = 2 and y = 3

Step-by-step explanation:

Given :

To Find : solve using substitution method

Solution :

-----1

------2

Substitute the value of x from 1 in 2

So, x = 2 and y = 3

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ANSWER

The angles of depression of the top and bottom of a 8m tall building from the top of a multi storied building are 30° and 45°, respectively. Find the height of the multi storied building and the distance between the two buildings.

Posted by Anant Singh 4 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Gaurav Seth 4 years, 10 months ago

Let AB and CD be the multi-storeyed building and the building respectively.

Let the height of the multi-storeyed building= h m and

the distance between the two buildings = x m.

AE = CD = 8 m [Given]

BE = AB – AE = (h – 8) m

and

AC = DE = x m [Given]

Also,

∠FBD = ∠BDE = 30° (Corresponding angles)

∠FBC = ∠BCA = 45° (Corresponding angles)

Now,

In Δ ACB,

In Δ BDE,

From (i) and (ii), we get,

Distance between the two building

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King Adithya H M... 4 years, 10 months ago

The angles of depression of the top and bottom of an 8m tall building from the top and bottom of a multistoreyed building are 30 and 45 degrees respectively. The angles of depression of the top and bottom of an 8m tall building from the top and bottom of a multistoreyed building are 30 and 45 degrees respectively.

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ANSWER

Solve the following quadratic equation. 6 ?+1 + 5 2?+1 = 3,? ≠ −1, −1 2

Posted by Shivani A Patil 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Shivani A Patil 4 years, 10 months ago

Solve the following quadratic equation. 6/ ?+1 + 5/ 2?+1 = 3,? ≠ −1, −1 2

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ANSWER

How I can get mathematics practical work

Posted by Priyanshu Raj 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anil Tharkar 4 years, 10 months ago

In shop

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ANSWER

23$:÷ eue

Posted by Vansh Patidar 4 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Vansh Patidar 4 years, 10 months ago

https://teams.microsoft.com/l/meetup-join/19%3acf4294ecafc348bb92e109398b3dbc74%40thread.tacv2/1600398087278?context=%7b%22Tid%22%3a%22ce08424f-7e85-4ba6-8ea9-faf7e759094a%22%2c%22Oid%22%3a%220ccc15eb-bcfa-4c8b-967a-9640a86099ba%22%7d

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Vansh Patidar 4 years, 10 months ago

2×6+2÷78÷;÷,$

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ANSWER

Find all the zeroes of 3x⁴-11x³-x²+33x-24

Posted by Chinmay Kumar Sahoo 4 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

?Isha .B 4 years, 10 months ago

Plz... Check it.

0Thank You

Priyasha Agarwal 4 years, 10 months ago

You can also get the answer of the question through google

1Thank You

Sumesh ☺️☺️☺️ 4 years, 10 months ago

Check it again

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Sumesh ☺️☺️☺️ 4 years, 10 months ago

Question may be not completed

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15m+3n=6 6m+3n=1

Posted by Shivam Chaurasiya 4 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Kiran Yadav 4 years, 10 months ago

Right

0Thank You

Yogita Ingle 4 years, 10 months ago

15m+3n=6 ..... (i)

6m+3n=1..... (ii)

Subtract (i) and (ii)

15m + 3n = 6

- 6m + 3n=1

-------------------

9m = 5

m = 5/9

Put m = 5/9 in (ii), we get

6m + 3n = 1

6(5/9) + 3n = 1

10/3 + 3n = 1

3n = 1 - 10/3

3n = (3 - 10)/3

3n = -7/3

n = -7/9

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ANSWER

1-64/113=113-64 how

Posted by Revanthkumar Mentada 4 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Secsq.x = 2+2tanx find tanx

Posted by Manas Oriya 4 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Cos thita

Posted by Ankush Gupta 4 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Harsh Janghu 4 years, 10 months ago

Cos theta =B/H

1Thank You

King Adithya H M... 4 years, 10 months ago

Cos theta = Sin(90°- theta)

0Thank You

Bro . 4 years, 10 months ago

Cos theta = Sin(90°- theta)

1Thank You

Bro . 4 years, 10 months ago

Cos theta = 1/Sec theta

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Praveen Dhakad 4 years, 10 months ago

Cos thita = 1/sec thita

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A circus artist is climbing a 20m long rope, which is tightly stretched and tied from top of vertical pole to the ground. Find the height of the pole, if the angle made by the rope with the ground level is 30°.

Posted by Ramanpreet Dhaliwal 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 4 years, 10 months ago

Let AB be the vertical pole and CA be the rope. Then,

∠ACB=30^o and AC=20 m

In right △ ABC,

sin30^o = AB/AC

1/2 =AB/20

AB=10 m

Therefore, the height of the pole is 10 m.

3Thank You

ANSWER

Coordinate geometry graph

Posted by Yash Motwani 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 4 years, 10 months ago

Coordinate geometry deals with graphing (or plotting) and analyzing points, lines, and areas on the coordinate plane (coordinate graph). Each point on a number line is assigned a number. In the same way, each point in a plane is assigned a pair of numbers.

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Find the area of a sector of a circle with radius 6cm if angle of the sector is 60.

Posted by Shreya Chatterjee 4 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Munni Kumari 4 years, 10 months ago

Working girl mu me te kar maruga

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Yogita Ingle 4 years, 10 months ago

2Thank You

Nidhi Kumari 4 years, 10 months ago

132/7cm^2

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How can I proof Theorem 6.1

Posted by Sahid Alam 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 4 years, 10 months ago

Statement: If a line is drawn parallel to one side of a triangle intersecting the other two sides, then it divides the two sides in the same ratio.
Given: A triangle ABC in which DE || BC, and intersects AB in D and AC in E.

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ANSWER

How could i find root of any number?

Posted by Pratik Kumbhakar 4 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Bro . 4 years, 10 months ago

By Factorisation Method -: -b ± √(b² - 4ac)/2a By middle term splitting method

0Thank You

Shobha Kumari 4 years, 10 months ago

By two method; 1)factorisation 2)discriminant

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If the sum of the first n terms of an AP is 4n – n2, what is the first term (that is S1)? What is the sum of first two terms? What is the second term? Similarly, find the 3rd, the 10th and the nth terms.

Posted by Shivani A Patil 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 4 years, 10 months ago

We have given that
Sum of the first n terms = 4n – n²
⇒ S_n = 4n – n²
Put, n = 1, then
S₁ = 4(1) – (1)² = 4 – 1 = 3
⇒ d₁ = 3
Hence, the first term is
Put n = 2, then
S₂ = 4(2) – (2)²
= 8 – 4 = 4
Hence, the sum of two terms is 4.
Now, second term = S₂ – S₁ = 4 – 3 = 1
Put n = 3, then
S₃ = 4(3) – (3)²
= 12 – 9 = 3
Third term = S₃ – S₂ = 3 – 4 = –1
Put n = 9, 10
S₉= 4(9) – (9)²
= 36 – 81 = –45
S₁₀= 4(10) – (10)²
= 40 –100 = –60
∴ Tenth term = S₁₀ – S₉
= – 60 – (–45)
= – 60 + 45 = –15
Now, S_{n –1} = 4(n – 1) – (n – 1)²
= (4n – 4) – (n² + 1 – 2n)
= 4n – 4 – n² – 1 + 2n
= 6n – n² – 5
∴ nth term = S_n – S_{n – 1}
= (4n – n²) – (6n – n² – 5)
= 4n – n² – 6n + n² + 5
= 5 –2n

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4x^2 + 4bx -( a^2-b^2)=0

Posted by Shivani A Patil 4 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

2x+3y=0 what type of eaation

Posted by Sahil Khan 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 4 years, 10 months ago

2x+3y=0 is two variable linear equations.

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How do I got above 95 percent in class 10th board exam??

Posted by Pranjali Tiwari 4 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Thunder Hood Hardy 4 years, 10 months ago

Study study and just study

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Yash Nishad 4 years, 10 months ago

By studying

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Rachana Dwivedi 4 years, 10 months ago

understand and learn .(hard work is must)

1Thank You

Shreya Raj 4 years, 10 months ago

With having good command and basic concept in every subject.

1Thank You

Pragyan Gayatri 4 years, 10 months ago

Study hard

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How will i get maximum numbers in class10th exams

Posted by Abhi Sarkar 4 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Sumesh ☺️☺️☺️ 4 years, 10 months ago

For maths you should more and more practice

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Sumesh ☺️☺️☺️ 4 years, 10 months ago

Your basic concepts should be first clear and also make notes this may help u for fast and quick revision

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Sumesh ☺️☺️☺️ 4 years, 10 months ago

By studying ??

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The diagram shows how the ant a 7-pointed star

Posted by Harman Kaur 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Nandañi ....!! 4 years, 10 months ago

Are you here for study purpose or for proposal ?

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1+Tan²ø=

Posted by Deepanshu Sablaniya 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

A K47 4 years, 10 months ago

Sec²∅

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Differentiate with respect to x x^2/route 4- x^2

Posted by Sajil Rahman 4 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Show that the cube of positive integer is of the form 6q+r , where q is an integer and r=0,1,2,3,4,5

Posted by Aniket Jariwala 4 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 4 years, 10 months ago

Let a be an arbitrary positive integer. Then, by Euclid’s division algorithm, corresponding to the positive integers ‘a’ and 6, there exist non-negative integers and r such that a = 6 q + r, where, 0 < r < 6

Hence, the cube of a positive integer of the form 6q + r,q is an integer and r = 0,1,2, 3, 4,5 is also of the forms 6m, 6m + 1, 6m + 2, 6m + 3,6m + 4 and 6m + 5 i.e.,6m + r.

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