# 19 - Equation and Inequalities Questions Answers

if (4k)TO power log2 = (9k) to power log3 than find 72k

**Asked By: HIMANSHU DHAKA**2 year ago

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**Asked By: GAUTHAM GANESH**5 year ago

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An army contingent of 1232 members is to march behind an army band of 64 members in a parade. The two group are to march in the same number of columns. What is the maximum number of columns in which they can march.

**Asked By: AKANKSHA MISHRA**5 year ago

**Solved By: ABHISHEK JAIN**

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SCRA 2013

QUES.- What Is The Solution Of The Diffrential Equation:

dy/dx = y/2y(siny^{2}+cosy^{2})-x

**Asked By: GAUTAM SAGAR**5 year ago

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The Graph of The Quadratic Polynomial f(x) = (x-a)(x-b) Where a, b>0 a≠b, Then The Graph Does Not Pass Through:-

(a) First Quadrant

(b) Second Quadrant

(c) Third Quadrant

(d) Fourth Quadrant

**Asked By: GAUTAM SAGAR**5 year ago

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No. of integral roots of the eqn. x^{8} - 24 x^{7} - 18x^{5} + 39 x^{2} + 1155 = 0 .

**Asked By: VAIBHAV GUPTA**5 year ago

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**Answer Strategies and trick by Manish sir**(it will help you to solve it by yourself)

two times sign change so 2 positive roots

let a,b,c be three distinct real numbers such that each of expression ax^{2}+bx+c,bx^{2}+cx+a,cx^{2}+ax+b are positive for all x ε R and let

α=bc+ca+ab/a^{2}+b^{2}+c^{2} then

(A) α<4 (B) α<1 (C) α>1/4 (D) α>1

THIS IS MULTIPLE CHOICE QUESTION

**Asked By: AKASH**5 year ago

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**Answer Strategies and trick by Manish sir**(it will help you to solve it by yourself)

if ax^{2}+bx+c is positive for real x

then b^{2}< 4ac similarly others

on adding all inequalities we get b^{2} + c^{2} + a^{2}< 4(ac+ab+bc)

now get answer

**Asked By: KAVYA S MOHAN**6 year ago

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(a-5)^{2}+(b-c)^{2}+(c-d)^{2}+(b+c+d-9)^{2}=0

then the value of (a+b+c)(b+c+d) is ?

a)0

b)11

c)33

d)99

**Asked By: KAVYA S MOHAN**6 year ago

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what is value of** iota raised to power iota**

**Asked By: SANKET MARKAN**6 year ago

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