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Let's 2√2 is a rational number 2√2/1=p/q 2√2q=p 2√2=p/q Because p/q is a rational number Therefore 2√2 is a rational number We known that 2√3 is a irrational number Therefore the contradiction arises by assuming 2√2 is a rational number Thus 2√2 is a rational number

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Show that 2+√2 is a rational no

Posted by Pratha Kumari 7 years, 6 months ago

CBSE > Class 10 > Mathematics

4 answers

Nisha Sangwan 7 years, 6 months ago

Sum of rational and irrational may be rational and irrational numbet

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Adarsh Kumar 7 years, 6 months ago

Sum of a rational and irrational is always irrational.

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Amarjeet Yadav 7 years, 6 months ago

Yes

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Priyanshu Kumar 7 years, 6 months ago

2+✓2/1 is a rational no

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ANSWER

Solve the linear equations x/a+y/b=a+b,x/bsquare+y/bsquare=2anda,a is not equal to zero?

Posted by Amitesh Sahu 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

solve alpha square beta + alpha beta square

Posted by Moninder Kaur 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Rucha Mohan 7 years, 6 months ago

Take alpha beta common Alpha beta (alpha + beta) Then put the values from polynomial by using relationship with coefficients

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Nisha Sangwan 7 years, 6 months ago

(alpha+beta)(alpha beta)

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ANSWER

If tan A = root 2-1 then find sinA cosA

Posted by Rucha Mohan 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Shiva Yadav Shiva Yadav 7 years, 6 months ago

Que samaz me nahi aaya

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What is difference between Euclids division lemma and Euclids division algorithm?

Posted by Neha Saini 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Rucha Mohan 7 years, 6 months ago

Euclid division lemma gives the relationship between dividend, divisior, quotient and remainder. Euclid division algorithm states that prime factorization of numbers is unique

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Find the Hcf of X^3 - 3X^2 +2 & X ^2 - 4x + 3 .

Posted by Basant Singh 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Susmita Mandal 7 years, 6 months ago

Therefore hcf= (x-1)

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Susmita Mandal 7 years, 6 months ago

X^3 -3X^2 +2 = x^3 - x^2 - 2x^2 +2 = x^2 (x^2 - 1) -2 ( x^2 -1) = (x^2 -2)( x^2-1) = (x^2 - 2) (x+1) (x-1) X^2 -4x +3 = x^2 -x -3x +3 = x(x-1) -3(x-1) = (x-3) (x-1)

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Area of a triangle formula

Posted by Deepika Deepika 7 years, 6 months ago

CBSE > Class 10 > Mathematics

4 answers

Deepika Deepika 7 years, 5 months ago

1/2*base*height

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Nisha Sangwan 7 years, 6 months ago

1/2b×h is wrong correct is 1/2×base×height

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Vaishnavi Srivastava 7 years, 6 months ago

1/2b×h

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Deepika Deepika 7 years, 6 months ago

1/2*b*h

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ANSWER

how to get the answer of pratice paper of class 10?

Posted by Sneha Behera 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Himani Garg 7 years, 6 months ago

By google and take answer sheet also from market

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ANSWER

Maths normal online test question not found Clearly

Posted by Kiran Gondaliya 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If alpha bita are the zeros of quardic polynomial 6xsquare +x_2 the find the value of alpha /bita +bita/alpha

Posted by Sameer Khan 7 years, 6 months ago

CBSE > Class 10 > Mathematics

3 answers

Himani Garg 7 years, 6 months ago

Alpha^2+bita^2/alpha.bita Alpha^2+bita^2+2alpha.bita- 2alpha.bita (Alpha+bita)^2-2alpha.bita/alphabita (-1/6)^2-2×-1/3/-1/3 1/36+2/3/-1/3 -25/12 answer

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Saras Shandilya 7 years, 6 months ago

25/12

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Sameer Khan 7 years, 6 months ago

_25/12

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ANSWER

85÷_=8500

Posted by Simran Sheoran 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Amrit Pal 7 years, 6 months ago

0.01

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Find K so that (x^2+3x+k) is a factor of (x^4 -5x^2+4 ).

Posted by Ritambhara Gupta 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Rosie Ruby 7 years, 6 months ago

1Thank You

Shreyas Pandey 7 years, 6 months ago

hiiii

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ANSWER

The following table shows the gain in weight by 50children in a year calculated modal gain Gain weight|1_3|3_4|5_7|7_9|9_11|11_13| No.of children|4|6|10|28|7|10|

Posted by Aakash Shaji 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

X²-8x-1280 middle term splitting

Posted by Mayank Sethi 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Yuv Raj 7 years, 6 months ago

1x^2+(−8)x+(−1,280)=0 By Q.F-- (-b ± √b² -4ac)÷2a (8 ± √64² +1280)÷2 X1=(8+72)÷2=40 X2=(8-72)÷2=-32

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Raman Khurana 5 years, 8 months ago

Heck

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ANSWER

Find four solutin for eqn. 4x - 2y = 5

Posted by Priya Gulati 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Neysha Misra 7 years, 6 months ago

(1.25,0) ,(0.75,-1) , (1,-0.5) ,(0,-2.5)

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Given the linear equation 2x+3y-8=0, write another linear equation in two variables such that the geometrical representation of the pair so formed is:(i) intersecting lines (ii) parallel lines (iii) coincident lines

Posted by Kunal Kishore 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Neysha Misra 7 years, 6 months ago

(i)4x+9y-10=0 (ii)8x+9y-12=0 (iii)4x+6y-16=0

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Rs 6500 were divided equally among a certain no.of persons . Had there been 15 more persons ,each would have got Rs 30 less . Find the original no. Of persons

Posted by Adarsh Sharma 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Aditya Singh 7 years, 6 months ago

Let the no of the person be x And the rupee get each person be y X multiple by Y= 6500 (X+15) multiple by (Y-30)=6500. Solve this equation

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A factory kept increasing its output by the same percentage every year . Find the percentage if it is known that the output is doubled in the last two years

Posted by Ankit Tiwari 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

IF ONE ZERO of the poly.(a^2+9)x^2+13x+6a is recipocal of the other, find the value of a

Posted by Ashmit Uttam 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Check whether (15)n can end with the digit 0

Posted by Mahendra Sahu 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Rishita Sinha 7 years, 6 months ago

No, the no. 15 can't end with the no. 0 because a number to end with 0 must have it's prime factor 2 and 5 but 15 has the prime factor 3 and 5 butnot 2 and 5. So, 15 can't end with no.0

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If the mean of 1,,3,4,5,6,7,4 is (m) and mean of 3,2,2,4,3,3 (p) is (m-1) and median is then p+q=

Posted by Santosh Kumar 7 years, 6 months ago

CBSE > Class 10 > Mathematics