Equations and Expre...
 

Equations and Expressions  

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let the quadratic eq ax^2 +bx + c be such that a,b,c are distinct and each of a,b,c belong to {1,2,3.....n} such that x+1 divides ax^2+ bx +c.If such quad.polynomials are < 99,then max(n)=?

a)14  b)15   c)16   d)18   e)none  of these

37 Answers
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roots

How to find the roots of a cubic equation?

15409524618071743848349

There is no formula for solving cubic polynomial you have to factorise them if possible or you have to look for the sum and product of roots here it can be factorised easily 

Got it. thanks alot 🙂

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The area enclosed by f(x) = min {4-x, 4+x} and g(x) = max {-x, x-4} equals

 

 

8

12

16

24

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A quadratic function attains minimum value of –25 at x = 1. If f(0) = –24, what is the value of f(6)?

 

 

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WhatsApp Image 2018 11 05 at 9.24.16 PM

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IMG 20181115 WA0009

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If a=√(7+4√3), what will be the value of a+1/a?

Hello Nancy!

PFA the solution 🙂 

49896725 1982448811872740 4461204052436320256 o

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If roots of equation (a^2+b^2)x^2-2b(a+c)x+b^2+c^2=0 are equal then a,  b, c are in

A) AP

B) GP

C) HP

D) cannot be determined 

PFA the solution 🙂 

49947616 1982477725203182 7318753336151244800 o

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Solve the inequality

3x^2-7x-6<0

 

3x2 – 7x – 6 < 0.

3x2 – 9x - 2x – 6 < 0.

3x ( 3x -2) -2( x-3) < 0.

( 3x – 2) ( x-3) <0

                  2/3                      3
___+ve____|_____-ve _____|____+ve___

2/3 < x < 3 

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(7/2+a)²+(7/2+a+x)²=7²-----(1)
(7/2+a-x)²+a²=(7/2)²-----(2)
Find values of a and x ?

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