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Find a cubic polinomial with the sum, sum of products of its zeroes are taken two at a time, and product of its zeroes as 2,-7,-14 respectively.

Posted by -Divyanshu- Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Kartikey Mishra 5 years, 5 months ago

x³-2x²-7x+14

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Tell me something about arithmetic progression

Posted by Himanshu Ranjan 5 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

?Prashant? ?Umarani? 5 years, 5 months ago

A sequence of numbers in which each differs from the preceding one by a constant quantity (e.g. 1, 2, 3, 4, etc.; 9, 7, 5, 3, etc.). the relation between numbers in an arithmetic progression.

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? Pranali.A.P ? 5 years, 5 months ago

, an arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. Difference here means the second minus the first. For instance, the sequence 5, 7, 9, 11, 13, 15.. . is an arithmetic progression with common difference of 2.

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what is the mean rational number

Posted by Tarun Kumar 5 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

?Prashant? ?Umarani? 5 years, 5 months ago

In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. [1] Since q may be equal to 1, every integer is a rational number. The set of all rational numbers, often referred to as "the rationals", the field of rationals or the field of rational numbers is usually denoted by a boldface Q (or blackboard bold {\displaystyle \mathbb {Q} } \mathbb {Q} , Unicode ℚ);[2] it was thus denoted in 1895 by Giuseppe Peano after quoziente, Italian for "quotient". The decimal expansion of a rational number always either terminates after a finite number of digits or begins to repeat the same finite sequence of digits over and over. Moreover, any repeating or terminating decimal represents a rational number. These statements hold true not just for base 10, but also for any other integer base (e.g. binary, hexadecimal).

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Deesha .C 5 years, 5 months ago

A number which can be expressed in the form of p by q where q is not equal to zero (0) Ex: 9/5

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Yogita Ingle 5 years, 5 months ago

The rational numbers are numbers which can be expressed as a fraction and also as positive numbers, negative numbers and zero. It can be written as p/q, where q is not equal to zero.

Rational word is derived from the word ‘ratio’, which actually means a comparison of two or more values or integer numbers and is known as a fraction. In simple words, it is the ratio of two integers.

Example: 3/2 is a rational number. It means integer 3 is divided by another integer 2.

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Exercise 3.2 class 10

Posted by Aarzoo Chaudhary 5 years, 5 months ago

CBSE > Class 10 > Mathematics

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?Prashant? ?Umarani? 5 years, 5 months ago

Its avaliable in the app?????????

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? Pranali.A.P ? 5 years, 5 months ago

Available in this app?

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Find the condition that the point (x,y) may lie on the line joining (3,4) and( -5,-6)

Posted by Deepak Aakaas 5 years, 5 months ago

CBSE > Class 10 > Mathematics

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Quadratic formula re answer deba Qustion no -1 Xsqare+x-6=0

Posted by Gungun Pradhan 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Study Lover ?‍? ?‍? 5 years, 5 months ago

x^2+x-6=0 =>x^2+3x-2x-6=0 =>x(x+3)-2(x+3)=0 =>(x-2)(x+3)=0 (x-2=0 Or x+3=0) x=2 Or x=-3. I hope this helps you.??

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If the pth term of an AP is 1/q and its qth term is 1/p,show that the sum of its first pq terms is 1/2(p+q).

Posted by Navneet Kaur 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

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(2x-1) (X-2) =0

Posted by Gungun Pradhan 5 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Lucifer ? Morningstar? 5 years, 5 months ago

D=(1)²-4(-6)=> 25 | | x=-b±√D/2a | | x=-1±5/2 | | x=3 or -2

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Gungun Pradhan 5 years, 5 months ago

Quadratic formula re answer deba Qustion no -1 Xsqare+x-6=0

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Yogita Ingle 5 years, 5 months ago

(2x-1) (X-2) =0

2x ( x - 2) - 1 ( x- 2) = 0

2x² - 4x - 1x + 2 = 0

2x² - 5x + 2 = 0

2x² - 4x - 1x + 2= 0

2x (x - 2) - 1(x - 2) =0

(x - 2) ( (2x-1) = 0

x - 2 = 0 and 2x - 1 = 0

x = 2 and 2x = 1

x = 2 abd x = 1/2

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4x ra 2-11x+6=0

Posted by Gungun Pradhan 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Lucifer ? Morningstar? 5 years, 5 months ago

4x²-8x-3x+6=> 4x(x-2)-3(x-2) => (4x-3)(x-2) => x=2 or 3/4

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Class 7 maths solutions

Posted by Vani Kadlimatti 5 years, 5 months ago

CBSE > Class 10 > Mathematics

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If P(E) 0.05, then P(not E)

Posted by Rafiya Sultana 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

? Pranali.A.P ? 5 years, 5 months ago

P(E)=0.05 P'(E)=1 - P(E) P'(E)=1 - 0.05 P'(E)=0.95

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Explain why 7×11×13 and 7×6×5×4×3×2×1+5 are composite number?

Posted by Shruti Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 5 months ago

Given 7×11×13+13

=13×(7×11+1)=3×78

This number is multiple of two integers. Hence it has more than two factors. Hence it is a composite number.

similarly in

7×6×5×4×3 ×2×1+5

=5(7×6×4×3 ×2×1+1)=5×1009

This number is multiple of two integers.Hence it has more than two factors.Hence it is a composite number.

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Find the smallest number which when divided by 28 and 32 leaves the same remainder 8 and 12 repectively

Posted by Vardan Rathi 5 years, 5 months ago

CBSE > Class 10 > Mathematics

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Divide 29 into two parts so that sum of the squares of the parts is 425.

Posted by Rohan Kumar 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Lucifer ? Morningstar? 5 years, 5 months ago

Let one no. be x then other no. (29-x). A/q, x²+(29-x)²=425 => 2x²-58x+841=425 => x²-29x+208=> x²-13x-16+२08=> x(x-13)-16(x-13)=> x=13 or 16

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A right circular cylinder of height 10 cm and circular base of radias 5 cm is field to half of its capacity by water. the cylinder is tilted so that no water goes out of the cylinder .the angle from vertical by which the cylinder is tilted is (a) not more than 30 degree (b) not more than 45 degree (c) more than 45 degree, but not more than 60 degree (d) not less than 60 degree

Posted by Ankit Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

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Posted by Ankit Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Lucifer ? Morningstar? 5 years, 5 months ago

(a)

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Ankit Singh 5 years, 5 months ago

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Ankit Singh 5 years, 5 months ago

(a) not more than 30 degree. (b) not more than 45 degree. (c) more than 45 degree , but not more than 60 degree. (d) not less than 60 degree

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Find the ratio in which y-axis divides the segment joining the points (-4,5)and (3,-7)also find coordinates of point of intersection

Posted by Laxman Phadake 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

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Which is irrational √2,√3,√8

Posted by Narender Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Navneet Kaur 5 years, 5 months ago

All are irrrational

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Lucifer ? Morningstar? 5 years, 5 months ago

All are irrational

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Excersice 3.1 first question

Posted by Malathi Karthikeyan 5 years, 5 months ago

CBSE > Class 10 > Mathematics

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Find the value of 3sin^20- 2tan^45+ 2sin^70

Posted by Koushik Ch 5 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Ankit Singh 5 years, 5 months ago

3sin²20°-2tan²45°+3sin²70° =3sin²20°-2×(tan45°)²+3{sin(90°×1)-20°}² =3sin²20°-2×(1)²+3cos²20° =3(sin²20°+cos²20°)-2 =3-2 [∵, sin²20°+cos²20°=1] =1 Ans.

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Ankit Singh 5 years, 5 months ago

This question is wrong Right question is 3sin^2 20° - 2tan^2 45° + 3sin^2 70°

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If alpha and beta are the two zeros of polynomial 21 x square minus x minus 2. Find a quadratic polynomial whose zeros are 2 alpha and 2 beta.

Posted by Akshat Upadhyay 5 years, 5 months ago

CBSE > Class 10 > Mathematics