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    • Posted by Suriya Prabha 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Arpan Das 1 year, 1 month ago

    17×19×23

    0Thank You

    Nitin Kumar 1 year, 2 months ago

    17*19*23

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    • Posted by Ashu Choudhary 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Fateh Gupta 1 year, 1 month ago

    We have to prove that √5 is an irrational number It can be proved using the contradiction method Assuming √5 as a rational number, i.e., can be written in the form a/b where a and b are integers with no common factors other than 1 and b is not equal to zero. √5/1 = a/b √5b = a By squaring on both sides (5b)2 = (a)2 b2 = a2/5 …. (1) It means that 5 divides a2. It means that it also divides a a/5 = c a = 5c By squaring on both sides a2 = 25c2 Substituting the value of a2 in equation (1) 5b2 = 25c2 b2 = 5c2 b2/5 = c2 As b2 is divisible by 5, b is also divisible by 5 a and b have a common factor as 5 It contradicts the fact that a and b are coprime This has arisen due to the incorrect assumption as √5 is a rational number. Therefore, √5 is irrational.

    1Thank You

    Akeet Deep 1 year, 2 months ago

    We have to prove that √5 is an irrational number It can be proved using the contradiction method Assuming √5 as a rational number, i.e., can be written in the form a/b where a and b are integers with no common factors other than 1 and b is not equal to zero. √5/1 = a/b √5b = a By squaring on both sides (5b)2 = (a)2 b2 = a2/5 …. (1) It means that 5 divides a2. It means that it also divides a a/5 = c a = 5c By squaring on both sides a2 = 25c2 Substituting the value of a2 in equation (1) 5b2 = 25c2 b2 = 5c2 b2/5 = c2 As b2 is divisible by 5, b is also divisible by 5 a and b have a common factor as 5 It contradicts the fact that a and b are coprime This has arisen due to the incorrect assumption as √5 is a rational number. Therefore, √5 is irrational.

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    • Posted by Simba Simba 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Karrii. Vijay 1 year, 2 months ago

    3 hrs

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    • Posted by Sahil Kumar 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 4 answers

    Nitin Kumar 1 year, 2 months ago

    a³+b³+c³+3(a+b)(b+c)(c+a). Right answer

    0Thank You

    Dashrath Singh Sisodiya 1 year, 2 months ago

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    Harinie S 1 year, 2 months ago

    a+b+c+3a²b+3ab²

    2Thank You

    Brajmohan Brajmohan 1 year, 2 months ago

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    • Posted by Himanshi Thakur 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 4 answers

    Himanshi Thakur 1 year, 2 months ago

    6 is right answer on SQP but I don't know how to Solve it

    1Thank You

    Himanshi Thakur 1 year, 2 months ago

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    0Thank You

    Pramith Fernandes A 1 year, 2 months ago

    2 CM IS THE ANSWER

    5Thank You

    Pramith Fernandes A 1 year, 2 months ago

    2 CM IS THE ANSWER

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    • Posted by Deepanshu Yadav 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Himanshi Thakur 1 year, 2 months ago

    Let √5 be a rational number. then it must be in form of pq where, q≠0 ( p and q are co-prime) √5=pq √5×q=p Suaring on both sides, 5q2=p2 --------------(1) p2 is divisible by 5. So, p is divisible by 5. p=5c Suaring on both sides, p2=25c2 --------------(2) Put p2 in eqn.(1) 5q2=25(c)2 q2=5c2 So, q is divisible by 5. . Thus p and q have a common factor of 5. So, there is a contradiction as per our assumption. We have assumed p and q are co-prime but here they a common factor of 5. The above statement contradicts our assumption. Therefore, √5 is an irrational number.

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    • Posted by Manasvi Bhandari 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Alfiya💫💫💫 . 1 year, 2 months ago

    Yes, it is true as you can check it by taking 1&2 or 3&4 or any other pair 1x2=2. ( divisible by 2) 3x4=12(it is also divisible by 2).. Hence the statement is true. Clear💫💫💫..

    0Thank You

    Bhakti Mehta 1 year, 2 months ago

    It is true. Because in any two consecutive positive integers, one will always by divisible by two.For example, 17 and 18 are consecutive numbers;here 18 is divisible by 2 and 17 × 18 equals 306 which is divisible by 2.

    0Thank You

    Sai Pansare 1 year, 2 months ago

    No, As in the two consecutive no. One of them is going to be even and the other would odd so the sum a odd no. and a even no. is always odd which is not divisible by 2

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    • Posted by Ayush Kumar 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Deepali Vishnoi 1 year, 2 months ago

    The distance between the points (0,2/5)and (-2/5,0)is

    3Thank You

    Shuhbham Mahakud 1 year, 2 months ago

    Sn = n/2 [2a + (n-1)d] Substituting values :- 0 = n/2 [2(50) + (n-1)(-4)] 0 = n/2 [100 - 4n + 4] 0 = n/2 [104 - 4n] 0 = n/2 × 4 [ 26 - n ] 0 = 2n [ 26 - n ] 0 = 26 - n - 26 = - n 26 = n. This should be the answer according to me.

    1Thank You

    Its Vicky 1 year, 2 months ago

    Sn = n/2 [2a + (n-1)d] Substituting values :- 0 = n/2 [2(50) + (n-1)(-4)] 0 = n/2 [100 - 4n + 4] 0 = n/2 [104 - 4n] 0 = n/2 × 4 [ 26 - n ] 0 = 2n [ 26 - n ] 0 = 26 - n - 26 = - n 26 = n. This should be the answer according to me.

    1Thank You

    ANSWER

    • Posted by Nitin Kumar 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Akanksha Kumari 1 year, 2 months ago

    (x-1) (x-2) (x-7)

    1Thank You

    Stanzin Lhadon 1 year, 2 months ago

    (x-2)(x-7)(x-1)

    1Thank You

    Aditya Sinha 1 year, 2 months ago

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    • Posted by Nitin Kumar 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Sarthak Malviya 1 year, 2 months ago

    LCM will be (x-2)(x-2)(x-7)

    0Thank You

    Sarthak Malviya 1 year, 2 months ago

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    0Thank You

    Ritika Chauhan 1 year, 2 months ago

    This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

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    3Thank You

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    • Posted by Tanu Mishra 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Raunak Singh 1 year, 2 months ago

    Intersecting at point (a,b)

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    • Posted by Harini Sree 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    S. Youthish Kumar 1 year, 2 months ago

    8

    2Thank You

    Raunak Singh 1 year, 2 months ago

    8 cm of diameter can be fitted with a height of 8 cm

    1Thank You

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    • Posted by Pau James 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Sarthak Malviya 1 year, 2 months ago

    A=-2or2 and b=2or-2 then answer is -16 or 16

    0Thank You

    S. Youthish Kumar 1 year, 2 months ago

    0

    1Thank You

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    • Posted by Vishnu Adduri 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Siju Divy 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Ritika Chauhan 1 year, 2 months ago

    Solution - Sin30° = 1/2 , tan 45° = 1 , sec 30° = 2/√3 , cot45° = 1 = 1/2 + 1 ÷ √3/2 + 1 = 1+2 / 2 ÷ √3 + 2 / 2 = 3 / 2 × 2 / √3 + 2 = 3 / √3 + 2 = √3 × √3 / √3 + 2 = √3 / 2 = Sin 60° answer I hope this is helpful to you...~

    1Thank You

    Kavya Rajvanshi 1 year, 2 months ago

    1/2+1÷ 2/√3+1 = 1+2/3 ÷ 2+√3/2√3 = 3√3(2-√3)/2 is a answer

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    • Posted by Vaishali Limanpure 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Parimal Katpatal 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Sai Pansare 1 year, 2 months ago

    Let the ratio in which the line segment joining A(- 3, 10) and B(6, - 8) be divided by point C(- 1, 6) be k : 1. By Section formula, C(x, y) = [(mx₂ + nx₁) / m + n, (my₂ + ny₁) / m + n] m = k, n = 1 Therefore, - 1 = (6k - 3) / (k + 1) - k - 1 = 6k - 3 7k = 2 k = 2 / 7 Hence, the point C divides line segment AB in the ratio 2 : 7.

    0Thank You

    Raunak Singh 1 year, 2 months ago

    2:7

    0Thank You

    Parimal Katpatal 1 year, 2 months ago

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    • Posted by Sushmita Chauhan 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by 👿 B Basava 😈 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Shuhbham Mahakud 1 year, 2 months ago

    TO PROVE:-(1+tan²A)/(1+cot²A) = sec²A-1 =>(1+tan²A)/(1+1/tan²A){ we know that cot²A = 1/tan²A } =>(1+ tan²A)/ {(tan²A + 1)/tan²A} =>{(tan²A)(1+ tan²A)}/ (tan²A+ 1) => tan²A => sec²A-1 { from the identity sec²A-tan²A = 1}

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    Shagun Sehra 1 year, 2 months ago

    TO PROVE:-(1+tan²A)/(1+cot²A) = sec²A-1 =>(1+tan²A)/(1+1/tan²A){ we know that cot²A = 1/tan²A } =>(1+ tan²A)/ {(tan²A + 1)/tan²A} =>{(tan²A)(1+ tan²A)}/ (tan²A+ 1) => tan²A => sec²A-1 { from the identity sec²A-tan²A = 1}

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    • Posted by Muskaan Muskaan 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Muskaan Muskaan 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Aditya Raj 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Ashwani Tyagi 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Utkarsh Shrivastava 1 year, 2 months ago

    Because it has non terminating ana non repeating decimal expansion

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    • Posted by Happy Sharma 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Shagun Sehra 1 year, 2 months ago

    x = m + n y = m - n

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    • Posted by Tannu Kumari 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Monu Kumar 1 year, 2 months ago

    4/5

    1Thank You

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    • Posted by Fjak Nka 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Kuldeep Mallick 1 year, 2 months ago

    0.4

    0Thank You

    Fjak Nka 1 year, 2 months ago

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    2Thank You

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    • Posted by Manit Mathur 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Raunak Singh 1 year, 2 months ago

    x= 10 or x= 21/2

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    • Posted by Vedant Mishra 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Mahika Deshpande 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Kaushik Verma 1 year, 2 months ago

    1/2×l×r

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    • Posted by Parakram Singh 1 year, 2 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Manoj Kumar 1 year ago

    (Tan theta)^2 - (sin theta)^2

    0Thank You

    Yug Purohit 1 year, 2 months ago

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