CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

We know that in equilateral triangle all three sides are equal. Then, According to theorem: Angles opposite to equal sides are equal. So,By angle sum property of triangle. Then angle A+ angle B+ angle C equals to 180 degree. Now according to theorem A=B=C Let equals angle be x So, X+X+X=180 3X=180 X=180÷3 X=60 Proved...

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Badal Gupta 8 years, 7 months ago

We know that all side of this triangle is equal let them abc first take any side like a b ,ac so angle b and c will be same (angle opp to equal side ) than take BC, ac same angle a and b will with same reason so if angle a= b=c . hence proved

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Last uear paper 1 ka 6 restion

Posted by Asif Ansari 8 years, 7 months ago

CBSE > Class 09 > Mathematics

1 answers

Anrag Singh 8 years, 7 months ago

F(x)=2X³-KX²-X-2 P(X)=2X-1 Then zero of p(x) be 2x-1=0 2x=0+1 2x=1 x=1/2 So, F(1/2)=2×(1/2)³-k×(1/2)²-1/2-2=0 F(1/2)=2×1/8 - 1/4k - 1/2 - 2=0 F(1/2)=4 - 1/4k - 1/2 - 2=0 F(1/2)=4 - 1/2 - 2 -1/4k=0 F(1/2)=3/2 - 1/4k=0. (4 - 1/2 - 2=3/2) F(1/2)= -1/4k=-3/2 K= -3/2+1/4 K=-2/4 answer.

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125 ki power x into 25upon 125 ki power x

Posted by Anuj Pathak 8 years, 7 months ago

CBSE > Class 09 > Mathematics

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If x=8-4root3 then find the value of xsquare+256upon x square

Posted by Yash Rade 8 years, 7 months ago

CBSE > Class 09 > Mathematics

0 answers

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If the area of an equilateral triangle is 140.29 cm then find perimeter

Posted by Rohan Shah 8 years, 7 months ago

CBSE > Class 09 > Mathematics

0 answers

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What is 6.7/7.8

Posted by Aditya Raj 8 years, 7 months ago

CBSE > Class 09 > Mathematics

0 answers

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1+1=

Posted by Yash Chandak 8 years, 7 months ago

CBSE > Class 09 > Mathematics

4 answers

Myra Khambhaita 8 years, 7 months ago

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Cheedella Ram 8 years, 7 months ago

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Mudit Shukla 8 years, 7 months ago

222

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Navdeep Shekhawat 8 years, 7 months ago

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If a,b,c all are non -zero and a+b+c=0,prove that :a²/bc + b²/ac +c²/ab=3

Posted by Anishka Arora 8 years, 7 months ago

CBSE > Class 09 > Mathematics

0 answers

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(a-b)'2

Posted by Prashant कुशवाहा 8 years, 7 months ago

CBSE > Class 09 > Mathematics

1 answers

Tanya Zanzad 8 years, 7 months ago

(a-b)whole2 = a square + 2(ab) + b square

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How to find root

Posted by Ishita Sharma 8 years, 7 months ago

CBSE > Class 09 > Mathematics

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Irrational number

Posted by Yash Kumar 8 years, 7 months ago

CBSE > Class 09 > Mathematics

1 answers

Khusboo Kumari 8 years, 7 months ago

Non terminating and non repeating numbers are called irrational numbers

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Check 2k+1is factor of p(x)=2x3-11x2-4x+1

Posted by Mohit Singh 8 years, 7 months ago

CBSE > Class 09 > Mathematics

1 answers

Swami Jee 8 years, 7 months ago

p(x)=2x3-11x2-4x+1

2x+1 = 0

x = -1/2

p(-1/2) = 2(-1/2)³-11(-1/2)²-4(-1/2)+1

= -2/8-11/4+4/2

take lcm

final ans is 8/8 = 1

and this is not a factor.

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Simplify (root5+root2)2

Posted by Karishma Kumawat 8 years, 7 months ago

CBSE > Class 09 > Mathematics

1 answers

Rashi Garg 8 years, 7 months ago

7+2 ROOT 10

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What is the difference between ASA and AAS ???

Posted by Aisha Mishra 8 years, 7 months ago

CBSE > Class 09 > Mathematics

3 answers

Tanya Zanzad 8 years, 7 months ago

Immagine a triangle ABC A is vertex. ASA:- B is a angle BC is a side C is an angle : ASA triangle property AAS :-B is an angle C is an angle CA is a side AAS triangle property

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Jain Sanstuti 8 years, 7 months ago

In AAS two sides and excluded side is take into consideration while in ASA two sides and included side is taken into consideration.

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Jain Sanstuti 8 years, 7 months ago

In AAS the two sides and e

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