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math lab activities cbse 10th

Posted by Ayushmaan . 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Give a method to produce an irrational.

Posted by Jyoti Raj Singh 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Moina Gogoi 6 years, 2 months ago

In class 10 there is not any method to prove a number irrationa but u can prove a irrtionan number as irrtional but 1st u have to assume the no. as rational and then u have to proceed it by taking 2 co prime no( the no which have only 1 factor) and by proving that a and b as more than 2 factor. you can prove that the no. given is irrtiona. Check it on 1st to learn properly???

ANSWER

Trigonometric ratio

Posted by Abhishek Yadav 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

TanA+secA-1÷tanA-secA+1=1+sinA÷cosA

Posted by Santosh Kumari 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The point (-2,a) on line 2x+5y=3 find?

Posted by Faiza Naz 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How to solve the geometry questions and not say that by revision and something else Tell me perfect answer plzzzzzz

Posted by Sumitcool Coolsharma 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sowndaryaa Lakshmi V 6 years, 2 months ago

Look sameer kholi video classes or edumanthra video classes . Good one. Check out

ANSWER

A dice is thrown what can be the probability of getting a prime number

Posted by Bhanwar Badiwal 6 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Ajay ???? 6 years, 2 months ago

1/2

Santosh Kumari 6 years, 2 months ago

1/2

Yogita Ingle 6 years, 2 months ago

Total numbers of elementary events are: 6

Let E be the event of getting a prime number
Favourable numbers are: 2, 3, 5
Numbers of favourable outcomes are = 3

As we know, Probability = (no. of favourable outcomes/Total outcomes)

P (E) = 3/6

= 1/2

Vikash Chandra 6 years, 2 months ago

1/2

ANSWER

What is composit numbers

Posted by Radharaman Gurjar 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 6 years, 2 months ago

A composite number has more than two factors, which means apart from getting divided by number 1 and itself, it can also be divided by at least one integer or number. We don’t consider the number ‘1’ as a composite number.

Example of Composite Number:

12 is a composite number because it can be divided by 1,2,3,4,6 and 12. So, the number ‘12’ has 6 factors.

Vikash Chandra 6 years, 2 months ago

A number which has more than two factors

ANSWER

I face some problems while making figures in height and distance. I dont understand how to make figures so guys plzz help me

Posted by Nisha Agarwal 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Nisha Agarwal 6 years, 2 months ago

Thank you.

Sowndaryaa Lakshmi V 6 years, 2 months ago

No idea sis. U have to understand the question, make a fig in ur mind then try. Fid is kost important .then only u can solve. All the best???

ANSWER

What is the greatest prime no

Posted by Bhuwaneshwar Prasad Verma 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Chandra Prabha 6 years, 2 months ago

Infinity

Anjali Bhadani 6 years, 2 months ago

97; ,from 2 to 100

ANSWER

In a triangle ABC , AD perpendicular to BC and AD²= BD.CD . Prove that ABC is a right triangle .

Posted by :) ** 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Kirandeep Kaur 6 years, 2 months ago

In triangle ADB and ADC Using pythagoras theorem: AB^2 = AD^2+BD^2....... (1) AC^2 = AD^2 + DC ^2......(2) Now, AB^2 +AC^2 = 2AD^2 +BD^2 +DC^2 = 2 BD. CD + BD^2 +CD^2 (Given that AD^2=BD.CD) (BD + CD)^2 = BC^2 Thus in triangle ABC AB^2 + AC^2 = BC^2 Hence triangle ABC is a right angle triangle Angled at A. Angle BAC = 90

ANSWER

If HCF (6,a) = 2 and LCM (6,a) = 60 then Find the value of a.

Posted by Yakshat Agrawal 6 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Vikash Chandra 6 years, 2 months ago

LCM x HCF= Product of two numbers 60 x 2 = 6 x a 120 = 6a Therefore, a = 20

Yogita Ingle 6 years, 2 months ago

Since, LCM × HCF = Product of two numbers

60 × 2 = 6 × a

120 = 6a

6a = 120

a = 120/6=20

Adarsh Roy 6 years, 2 months ago

A=20

Bhuwaneshwar Prasad Verma 6 years, 2 months ago

20

Anjali Bhadani 6 years, 2 months ago

HCF *LCM=a*b 2*60=6*a a=2*60/6 a=20

ANSWER

With what colour pen we have to write our board exams

Posted by Prabal Das 6 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Vikash Chandra 6 years, 2 months ago

Black for questions and blue for answers

Ajay ???? 6 years, 2 months ago

Only blue

Sowndaryaa Lakshmi V 6 years, 2 months ago

Avoid gel pen because sometimes it may overlap. A small dot or ink point can cause many problems, loss of marks... So use BLUE BALL PEN. All the best for your exams??

Sowndaryaa Lakshmi V 6 years, 2 months ago

Only and only blue

ANSWER

Solve for Costco theata =2 Then , 1/tan theata +sin theata /1+cos theata

Posted by ꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Aadya Singh 6 years, 2 months ago

2..

꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 6 years, 2 months ago

Sorry cosec theata hai wha per

ANSWER

Alll the practical name of class 10 of subject maths

Posted by Gautam Singh 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The perimeter of a rectangular field is 82m and its area is 400m find the dimensions of the field

Posted by Nitin Tyagi 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 6 years, 2 months ago

Let breadth be B

perimater = 2(L+B)

but perimeter=82,

therefore , 2(L+B) = 82

L+B = 41

therefore L = 41- B.

area = L* B

but area given = 400m2

so, L*B = 400

B *(41-B) = 400

-B2 + 41B = 400

-B2 + 41B - 400 = 0

B2 - 41B +400 = 0(MIDLLE TERM FACTORISATION)

B2 - (25B+16B) +400 = 0

B2 - 25B -16B +400 = 0

B(B -25) - 16(B - 25)= 0

THEREFORE BREADTH AND LENGTH ARE EITHER25 AND 16 RESPECTIVELY OR 16 AND 25 RESPECTIVELY.

Piyush Kr.?? 6 years, 2 months ago

B=16m or B=25m and L=16m or L=25m??

ANSWER

How marks trigonometry topic cover in exam

Posted by Rizwan Khan 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Naincy Verma 6 years, 2 months ago

8 marks

Nitin Tyagi 6 years, 2 months ago

8 marks

Silent Girl Happy 6 years, 2 months ago

8 marks

ANSWER

(tanA/1-cotA) +(cotA/1-tanA)=1+secAcosecA

Posted by H Bansal 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Aadya Singh 6 years, 2 months ago

LHS - (tanA / 1-cot A) + (cot A /1 - tan A)
=> [sinA/cosA/(1- cosA/sinA)] + [cosA/sinA/(1- sinA/cosA ]
=> [ sinA / cosA / sinA-cosA/sinA] + [ cosA/sinA/cosA-sinA/cosA]
=>[ sin²A / cosA(sinA - cosA)] + [ cos²A/sinA(cosA - sinA) ]
=> [ sin²A/cosA(sinA - cosA) ] - [ cos²A/sinA ( sinA - cosA)]
=> [( sin³ A - cos³A)/ sinAcosA(sinA - cosA)
=> (sinA - cosA)( sin²A + cos²A + sinAcosA) / sinAcosA(sinA - cosA)
=> (sin²A + cos²A + sinAcosA) / sinAcosA
=> ( 1 + sinAcosA)/ sinAcosA
=> 1/sinAcosA + 1
=> cosecA secA + 1
=> secAcosecA + 1
=> Now, LHS = RHS....So, it's prove...

H Bansal 6 years, 2 months ago

Pls answer fast ??

ANSWER

Example 17 chapter 4 how to do this question please explain

Posted by Dr. Jasmine Kaur ?? 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Dr. Jasmine Kaur ?? 6 years, 2 months ago

Ncert

꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 6 years, 2 months ago

R s aggrval

Anish Singh 6 years, 2 months ago

NCERT?

ANSWER

To verify using a graphical method that a given sequence of number is an AP

Posted by Yash Vardhan 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If 3x=cosecø and 3/x =cotø find the value of
3(x²-1/x).. (>_<)

Posted by ♛ ❝Ѕυнαɴα❞ ♛ 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 6 years, 2 months ago

Ankesh

ANSWER

In an ap the sum of four sum is 460 and six term is 500 find its 10 term

Posted by Sumit Shukla 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

A ladder has rungs 25cm apart.The rungs decrease uniformly in length from 45cm at the bottom rungs are 2×1/2m apart,what is the length of the wood required for the rungs?

Posted by Paveethra Paveethra 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If DE||BC then find the ratio of arADE and arDECB also DE =6cm and BC=12cm

Posted by Naman Agrawal 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

888

Posted by Abhishek Jha 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sumitcool Coolsharma 6 years, 2 months ago

What

ANSWER

835

Posted by Abhishek Jha 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Sumitcool Coolsharma 6 years, 2 months ago

What

Harshita Naagar 6 years, 2 months ago

??

ANSWER

If the mean of 5 observation is n,n+2,n+4,n+6nd n+8 is 11 find n

Posted by Harshita Naagar 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the perimeter of trangle 0,1 3,0 0,4

Posted by Sakshi Kumari 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove the trigonometric identity :1-sina÷1+sina=(seca-tana) rase to 2

Posted by Prajwal Tuppad 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sakshi Kumari 6 years, 2 months ago

This is very wrong question because you are fail in the board exam 2020

ANSWER

Determine the 10th term from end of AP 4 9 14........254

Posted by Aishwarya Badiger 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Ayushman Yadav 6 years, 2 months ago

10th term=a+9d 4+9×5=49

Poorv Jain 6 years, 2 months ago

10th term =a+9d =4 +9×5=4+45=49

Pragati Jain 6 years, 2 months ago

a=254 d=-5 a10 =a+9d =254-45 =209

ANSWER

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