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

The largest positive integer that will divide 398, 436 and 542 leaving reminders 7, 11 and 15 respectively is the HCF of the numbers (398 – 7), (436 – 11) and (542 – 15) i.e. 391, 425 and 527.
HCF of 391,425 and 527:
HCF of 425 and 391:
425 = 391 × 1 + 34
391 = 34 × 11 + 17
34 = 17 ×2 + 0
HCF of 425 and 391 = 17
527 = 17 × 31
Similarly, HCF of 17 and 527 = 17
So, HCF of (391,425 ,527) = 17
∴ Required number is 17.

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Eight class sixth. Three

Posted by Jai Chand 7 years, 8 months ago

CBSE > Class 10 > Mathematics

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Posted by Radhika :) Mishra:} 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by its property i² = −1.

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What must be added to the polynomial p(x) x⁴+2x³-2x²+x-1, so that resulting polynomial is exastly of x²+2x-3?

Posted by Amit Saini 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Sagar Raj Singh 7 years, 8 months ago

If we take another no like 40. And now question is -what must be added to the no.40 so it divisible by 7. Solve - firstly we divide 40 by 7.then remainder is 5.after this we subtract 7-5=2 .so the answer is if we add 2to the number 40 then it divisible by 7.(same method) apply on given question.

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Posted by Saswat Saidutta 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Shweta Kumari 7 years, 8 months ago

It's very easy just you have to use Euclid's division lemma, a=bq+r where q=m , square and solve it

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Posted by Shruti Mishra 6 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

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Posted by Anurag Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

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Posted by Deepak Kumar Raj 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Sagar Raj Singh 7 years, 8 months ago

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CBSE > Class 10 > Mathematics

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CBSE > Class 10 > Mathematics

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CBSE > Class 10 > Mathematics

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CBSE > Class 10 > Mathematics

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CBSE > Class 10 > Mathematics

1 answers

Harshu B 7 years, 8 months ago

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Posted by Monu Verma 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Rajdev Attri 7 years, 8 months ago

SecQ=1-tanQ

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Posted by Adarsh Chaubey 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Adarsh Chaubey 7 years, 8 months ago

Wrong

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Priyanshu Chourasia 7 years, 8 months ago

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Posted by Vedant Singh 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Lipsa Rani 7 years, 8 months ago

3x=0-2x (0-2x)+2x=0-2x+2x=0-0=0

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Rahul Sharma 7 years, 8 months ago

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Posted by Ansh Gupta 5 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

The given polynomial is
p(x) = 6x²-7x -3
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= 3x(2x - 3) + 1(2x - 3)
= (3x + 1)(2x - 3)
For p(x) = 0, either 3x + 1 = 0 or 2x - 3 = 0
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Sum of zeroes = {tex}\frac { - 1 } { 3 } + \frac { 3 } { 2 } = \frac { 7 } { 6 }{/tex}
Also, {tex}\frac { - b } { a } = \frac { - ( - 7 ) } { 6 } = \frac { 7 } { 6 }{/tex}
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Also, {tex}\frac { c } { a } = \frac { - 3 } { 6 } = \frac { - 1 } { 2 } {/tex}

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CBSE > Class 10 > Mathematics

1 answers

Parthiv Pandey 7 years, 8 months ago

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CBSE > Class 10 > Mathematics

0 answers

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Posted by Varun Sharma 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Priyanshu Kumar 7 years, 8 months ago

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CBSE > Class 10 > Mathematics

3 answers

Reva Reva 7 years, 8 months ago

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Reva Reva 7 years, 8 months ago

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Varun Sharma 7 years, 8 months ago

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Posted by Milind Bandi 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Debasish Roy 7 years, 8 months ago

Let one number be x and other be 3x . According to question 3x - x =26. 2x = 26 x = 26/2 x = 13 And 3x = 13 × 3 = 39 Therefore the number are 39 and 13

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Chetna Singh 7 years, 8 months ago

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CBSE > Class 10 > Mathematics