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

The triangle inequality states that the sum of the lengths of any two sides of a triangle must be greater than or equal to the length of the third side. That sum can equal the length of the third side only in the case of a degenerate triangle, one with collinear vertices. Internal angle (degrees): 60° Edges and vertices: 3 Properties: Convex, cyclic, equilateral, isogonal, isotoxal Symmetry group: Dihedral (D3), order 2×3

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please give me answer of ch-8 8.4 Q.3 10 sum

Posted by Kinnari Tagore 5 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Kinnari Tagore 5 years, 4 months ago

thanks pranali

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Mr__Priyanshu ❤️______ __ 5 years, 4 months ago

In RS agwal book

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? Pranali.A.P ? 5 years, 4 months ago

Q3) i) = 1 ii) = 1

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My name is ghanshyam thakkar

Posted by Kinnari Tagore 5 years, 4 months ago

CBSE > Class 10 > Mathematics

4 answers

Kinnari Tagore 5 years, 4 months ago

thanks pranali

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Raman Upadhyay 5 years, 4 months ago

Toh kya kare

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Yash Jain 5 years, 4 months ago

And i am a human

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? Pranali.A.P ? 5 years, 4 months ago

So , what

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Q. 4 ex. 8.4

Posted by Deepika Gupta 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Love Preet 5 years, 4 months ago

It is available on the app...

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Exercise 1.3

Posted by Manju Narwat 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Love Preet 5 years, 4 months ago

It is available on the app...

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Kvhxvlj FM vkchdaeia hmm nlj

Posted by Mohit Sheoran 5 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Raman Upadhyay 5 years, 4 months ago

Bhai apki alien language hame samaj nahi a rahi he toh plz aise language use kare Jo hame samaj aye

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Yash Jain 5 years, 4 months ago

Haven't you heard of english?

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? Pranali.A.P ? 5 years, 4 months ago

Ky hai ye ?

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Show that there is no natural number 4 ki power n ends with 0

Posted by Sandhya Bisht 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

? Pranali.A.P ? 5 years, 4 months ago

cannot ends with the digit zero. ... A digit ending with zero must need to have 2 and 5 as factors or the number itself should have ended with the digit zero. The factors of 4 = 2×2. It has only 2 as a factor and 5 is missing.

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Find quadratic polynomial whose zeroes are - 4 and 1 respectively

Posted by Arshiya Rana 5 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 4 months ago

$$ For quadratic equation $ ax^2 + bx + c =0\\ $ Sum of the roots ( --b/a)= 4 \\ Product of roots (c/a)= 1 $\\ x^2 + (b/a)x + (c/a) =0\\ $ Hence the required quadratic equation is x^2 +4x + 1 =0\\$

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? Pranali.A.P ? 5 years, 4 months ago

1) therefore, for polynomial.....we have to use.... x²-(sum of zeros)x + product of zeros. 2) hence,the required polynomial is.......x² -(-3)x + (-4) hope it helps.......

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Show that n square -1 is divisible by 8, if n is of the form 3m or 3m+1 for some integer m

Posted by Jey Nisha 5 years, 4 months ago

CBSE > Class 10 > Mathematics

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Hii priyanshu i am neha

Posted by ? Pranali.A.P ? 5 years, 4 months ago

CBSE > Class 10 > Mathematics

4 answers

? Pranali.A.P ? 5 years, 4 months ago

Ok , no problem

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? Pranali.A.P ? 5 years, 4 months ago

I am fine and what about u

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Mr__Priyanshu ❤️______ __ 5 years, 4 months ago

How are you

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Mr__Priyanshu ❤️______ __ 5 years, 4 months ago

Ooooo

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How many three digit numbers are divisible by seven

Posted by Ashish V 5 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Gaurav Seth 5 years, 4 months ago

The first 3-digit number which is divisible by 7 is 105

The last 3-digit number which is divisible by 7 is 994

The list of 3-digit numbers divisible by 7 are

105, 112, 119,…..994 which forms an A.P

Now using the A. P Formula,

T(n) = a + (n – 1)d

Where

a = 105

d = 7

T(n) = 994

994 = 105 + (n – 1)7

889 = 7n – 7

7n = 896

n = 128

∴ There are 128 3-digits number which are divisible by 7.

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? Pranali.A.P ? 5 years, 4 months ago

128

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Ashish V 5 years, 4 months ago

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1/2 x3-5x2-11x-3

Posted by Pradip Patil 5 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

? Pranali.A.P ? 5 years, 4 months ago

24.5

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? Pranali.A.P ? 5 years, 4 months ago

Don't know

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Mr__Priyanshu ❤️______ __ 5 years, 4 months ago

Goggle ka lo

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2 cube each of volume 64cm3 are joined end to end . Find the surface area of the resulting cuboid

Posted by Ritesh Chaturvedi 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

? Pranali.A.P ? 5 years, 4 months ago

Given, volume of each cube is 64 cm³.......... ⇒s³=64.......... ⇒s=∛64..... ... ⇒s=4 cm............ When two cubes are joined , ............ the length of the resulting cuboid(l) = side + side = 4+4 = 8 cm.......... its breadth(b) = side = 4cm........... And its height(h) = side = 4cm.......... Total surface area of a cuboid = 2(lb+bh+hl)........... ⇒TSA=2[(8)(4)+(4)(4)+(4)(8)]....... ⇒TSA=2(32+16+32)......... ⇒TSA = 2(80)........ ⇒TSA = 160 cm².......... ∴ The surface area of the resulting cuboid is 160 cm..........

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Number of zeroes in the product of 5×10*40*50*55*65*125*80 by (2nth×5) method

Posted by Atul Singh 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

? Pranali.A.P ? 5 years, 4 months ago

the answer is 9 zeros. as the product is 89375000000000 hope it helps uu. .......

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If A=[2,3,4,5]then write the relation R on A where R=[(a, b) :a+b=6]

Posted by Manisha Kumari 5 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Tanish Parashar 5 years, 4 months ago

Is this is a question of class 10th ?

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Mr__Priyanshu ❤️______ __ 5 years, 4 months ago

This question is correctly wrong

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Ritesh Chaturvedi 5 years, 4 months ago

Hm Good question. ?

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2x-5 - 3 by 4 is equal to X by 2 - 5 by 6 by multiple method

Posted by Shubham Kumar 5 years, 4 months ago

CBSE > Class 10 > Mathematics

0 answers

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2¢4{4•√}

Posted by Kavita Jangir 5 years, 4 months ago

CBSE > Class 10 > Mathematics

0 answers

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A trader bought a number of articles for rs.900. Five were damaged and he sold each of the rest at rs.2 more than what he paid for it, thus getting a profit of rs.80 on the whole transaction. Find the number of articles he bought.

Posted by Reet Kaur 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

? Pranali.A.P ? 5 years, 4 months ago

Number of articles=x( say)......... therefore c.pof per article= 900/x........ profit on s.p= (x-5)2................. real profit=( x-5)2- 5(900/x)................ . given profit = 80 ......................... therefore(x-5)2-5(900/x)= 80........................ 2x- 10-4500/x= 80................... 2x^2 -10x- 4500= 80x..................... x^2 -5x-2250=40x................... x^2-45x- 2250=0............... x^2-75x+30x-2250=0................. (x-75)(x+30)=0.............. therefore,............ number of articles=75............

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15x²-41x+14=0 factorisation

Posted by Saloni Sawant 5 years, 4 months ago

CBSE > Class 10 > Mathematics