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b + c, c + a, a + b will be in AP, if
(c + a) - (b + c) = (a + b) - (c + a)
{tex}\Rightarrow{/tex} a - b = b - c {tex}\Rightarrow{/tex} 2b = a + c
i.e., a, b, c are in AP.
Thus, a, b, c are in AP implies b + c, c + a, a + b are also in AP.
Hence proved.

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7777$2××$666

Posted by Jahnavi Nyamagoudar 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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2+2×7÷49+8

Posted by Ranjan Kumar 7 years, 6 months ago

CBSE > Class 10 > Mathematics

4 answers

Prachi Tiwari 7 years, 6 months ago

1Thank You

Priyanka Chaurasiya 7 years, 6 months ago

10.28

2Thank You

Yash Patil 7 years, 6 months ago

10.28

1Thank You

Rajiv Ranjan 7 years, 6 months ago

2+2*7+8 2+14+8 24

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is the following statement true or false? justify your answer. if the zeroes of quadratic polynomial ax^2+bx+c are both negative then a,b and c all have same sign

Posted by Sanskriti Vijay 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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a and b are two positive integers such that the least prime factor of a is 3 and of b is5. Then the least prime factor of (a+b) is?

Posted by Mahanta Bhagat 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Mahanta Bhagat 7 years, 5 months ago

Plz ans. .....

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A number when divided by143 leaves 31as remainder. What will be the remainder when the same number is divided by13?

Posted by Mahanta Bhagat 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Mahanta Bhagat 7 years, 5 months ago

Plz ans....

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Cce pattern phir aa gya hai kya

Posted by Sabir Ali 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sanjay Kumar 7 years, 6 months ago

Nahi

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Draw the graphs of the equations x-y=-1, 2x+y-10=0.determine coordinates of the vertices of the triangle formed by these lines and the x_axis and shade the tri nngulers region

Posted by Ayesha Bux 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

{tex}x - y + 1 = 0{/tex}
{tex}\Rightarrow{/tex} {tex}y = x + 1{/tex}

-1	1	0
0	2	1

{tex}2x + y - 10 = 0{/tex}
{tex}\Rightarrow{/tex} {tex}y = 10 - 2x{/tex}

2	4	5
6	2	0

Shaded portion is the area bounded by the lines and x-axis.
Area = {tex}\frac{1}{2} A C \times B L{/tex}
= {tex}\frac{1}{2} \times 6 \times 4{/tex}
= {tex}12 sq. units{/tex}

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Find the greatest number of 6 digits exactly divisible by 24, 15, 36

Posted by A.Oliva Rose Merline 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Amarkant Kumar 7 years, 6 months ago

First you take LCM of 24,15,36 =360 Then greatest no. Of 6digit 999999 Divide 999999/360 You got some remainder Then you subtract 999999- remainder

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SinA 4/3 find other theronmetric ratio

Posted by Suraj Kumar 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sahin Biswas 7 years, 6 months ago

I think the question is wrong coz hypotenuse can't be smaller than perpendicular or base

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Find a quadratic polynomial whose zeros are -3,2

Posted by Prachi Ladda 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Khushi Tekriwal 7 years, 6 months ago

Let, Alpha= -3 & Bitta = 2 Sum of the zeros =(alpha + Bitta) = -3 + 2 = -1 Product of the zeros = (alpha × Bitta) = -3 × 2 = -6 So,the required quadratic polynomial is x^2 -(alpha + bitta)x +(alpha × bitta) x^2 -( -1 )x + ( -6 ) x^2 + x -6

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Nishi K 7 years, 6 months ago

alpha=-3 &bita= 2 Alpha +bita= -3 + 2= -1 Alpha*bita=-3*2=-6 x2-( alpha+ bita)x + alpha* bita = x2 -(-1)x +6 =x2 +x +6

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Syllabus of sa 1 and sa2 board exam session 2018-19

Posted by Sumit Singh 7 years, 6 months ago

CBSE > Class 10 > Mathematics