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

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How to find the roots of a cubic equation?

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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0
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If a=√(7+4√3), what will be the value of a+1/a?

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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

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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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