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Basic propoartionality theorem

Posted by Amrendra Singh 5 years, 8 months ago

CBSE > Class 11 > Mathematics

1 answers

Yogita Ingle 6 years ago

Basic Proportionality theorem was introduced by a famous Greek Mathematician, Thales, hence it is also called Thales Theorem. According to him, for any two equiangular triangles, the ratio of any two corresponding sides is always the same. Based on this concept, he gave theorem of basic proportionality. This concept has been introduced in similar triangles. If two triangles are similar to each other then,

i) Corresponding angles of both the triangles are equal
ii) Corresponding sides of both the triangles are in proportion to each other

Thus two triangles ΔABC and ΔPQR are similar if,

i) ∠A=∠P, ∠B=∠Q and ∠C=∠R
ii) AB/PQ, BC/QR, AC/PR

ANSWER

All formula of class 11 maths

Posted by Ankit Raj Gaurav 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

find the equation of the line which is passing through the point (-2, -4) and perpendicular to the line 3x – y + 5 = 0.

Posted by Sahil Kumar 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Lucky Papa 6 years ago

First We Find Slope of Eq. 3x-y+5=0 Y=3x+5 M1=3 For Perpendicular, M1.M2=-1 M2=-1/3, So, Eq. of line..... (Y-Y1)=M2 (X-X2) (Y-(-4))=-1/3 (X-(-2)) 3Y+12=-X-2 X+3Y+14=0... this is req. Eq.

ANSWER

Define minima and maxima with examples

Posted by Harshita Rajput 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Is the miscellaneous of conic sections(class 11th) is removed by cbse for the session 2019-20

Posted by Dhruv Bansal 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Robinpreet Kaur 6 years ago

Yaaa

Soumyadeep Paul 6 years ago

In 11th class all Miscellaneous examples and exercises are Exam point of view

ANSWER

Point R(h,k) divides a line segment b/w the axis in the ratio 1:2 find equation of a line

Posted by Minku Sharma 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is HP??

Posted by Aayushi Singh 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Soumyadeep Paul 6 years ago

In Mathematics , HP is Harmonic Progessions. (In physics, it is Horse Power.)

Shone Sibichen 6 years ago

Horse power

ANSWER

(X+2)cube abnitio method

Posted by Sukh Sandhu 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Akash Kasaudhan 6 years ago

Binomial theorem

ANSWER

Abnitio method

Posted by Sukh Sandhu 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Let x=1+a+a*a+..... And y=1+b+b*b+..... Where |a|<1 and |b|<1. Prove that. 1+ab+a*a*b*b+....=xy/x+y-1

Posted by Ronit Sharma 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find a if the coefficient of x² and x³ in the expansion of (3+ax)9 are equal

Posted by Krishan Kumar 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Soumyadeep Paul 6 years ago

Here, 9C2 x 3^7 x a^2 = 9C3 x 3^6 x a^3 And we get, a = 9/14.

ANSWER

Find equation of tangent of parabola y^2=12x which passes through (2,5)

Posted by Dhruv Aggarwal 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is line

Posted by Md Shabaj Raza 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Faiz Khan 6 years ago

Which has a starting point But not ending point.

Robinpreet Kaur 6 years ago

Which has no ended point

ANSWER

Evaluate Lim. cosx/ X- π/8. π/2-x

Posted by Gaurav Rathi 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Equations of conic section?

Posted by Anand Ganesh 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

we wish to select 6 persons from 8 but if the person a is chosen then we must be chosen in how many ways the selection be made

Posted by Amit Gangwar 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Amit Gangwar 5 years, 11 months ago

22

ANSWER

IN ∆ABC , Prove that sin^2 A/2+ sin^2 B/2+ sin^2 C/2 =1-2sin A/2 sinB/2 sinC/2

Posted by Neha Yadav 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

270 candidates appeared for an examination of which 252 passed the pass percentage is X y/Z then the value of x minus y minus Z is

Posted by Mahadevu D 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Ankit Tiwar 6 years ago

Cos x derrivate

ANSWER

How can find out range

Posted by Deepu Deepu 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Robinpreet Kaur 6 years ago

Range is a value which is with the term x

ANSWER

How can fund out range

Posted by Deepu Deepu 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Bhoomi ☺️?? 6 years ago

Highest value - lowest value

Dhruv Bansal 6 years ago

Highest value - lowest value/ highest value + lowest value

ANSWER

So that the word INSURANCE can be arranged in twice as many ways can the letters of the word ECONOMICS?

Posted by Rahul Yadav 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the equation of a line parallel to x-axis at a distance of 3 units above x axis

Posted by Arun Ranawat.. 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Tushar Kumar 6 years ago

{ y-3=0 }

Rohan Bamniya 6 years ago

Y=3

ANSWER

1/2+2i write in form of a+ib

Posted by Amol Ingle 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Sakshi Banger 5 years, 11 months ago

1/2+2i 1/2+2i×2-2i/2-2i 2-2i / (2)^2-(2i)^2 2-2i/4+4 2-2i/8 2/8-2i/8 1/4-1/4i ( a+ib ) a=1/4 b= -1/4

ANSWER

Find the probability that the person selected was 65years of age given that the person owned atleast five years of wearable sneakers.

Posted by Rakesh Kumar Patra 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If y=(√x/√a+√a/√x) ,prove that (2xy) (dy/dx)=(x/a-a/x)

Posted by Aditi Singh 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Kanish Handuja 6 years ago

See it from your boobs and your asss hole

ANSWER

2x+ (3-5)-(9y+8y)

Posted by Vijay Panchal 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

how to solve sequence series questions

Posted by Neeru Old Songs Aggarwal 6 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Formula of point intersept form

Posted by Deeksha Baranwal 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Deeksha Baranwal 6 years ago

No thanx

Deepu Deepu 6 years ago

Ncert p.n 216

ANSWER

Find the derivative of tan square X by first principle

Posted by Harsh Rajput 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Riya Singhal 6 years ago

2 tanx sec²x

ANSWER

(a+b)-²

Posted by Babu Kumar 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Soumyadeep Paul 6 years ago

(a+b)^-2 is = 1/(a+b)^2 Therefore answer is 1/a^2 + 2ab + b ^2

Yogita Ingle 6 years ago

(a + b)² = a² + 2ab + b²

ANSWER

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