Show that the expression (ax-b)*(cx-d)/(bx-a)*(dx-c) can have all the values for real x if (a*a)-(b*b) and (c*c)-(d*d) have the same sign.

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please solve this question in the image without substitution method?????
 
 
Hello student, Please find the answer to your question below (a)First you need to prove that for positive values of x and y x/y + y/x >= 2 (x - y)² + 2xy = x² + y² Divide...
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SHAIK AASIF AHAMED 3 days ago
The points z1,z2,z3,z4 are veritces of parallelogram only if?
 
 
Hello Student, if they represent vertices of a parallelogram then midpoint of diogonal coincides. Thanks & Regards Arun Kumar Btech, IIT Delhi Askiitians Faculty
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Arun Kumar 23 days ago
Number of all five digits numbers divisible by 4 that can formed from 0,1,2,3,4 without repetition is
 
 
hi shubham there would be 5 cases in which the number is divisible by 4 when the last 2 digits are 04,40,12,32,20 now we have to find the number of ways in which we can arrange the first...
 
jitender lakhanpal 11 months ago
 
hi shubhum it is very evident in this case that the last two digits will be divisible by 4 the basic divisibility criteria of 4 likewise we we can find the cases for divisibilty of 8 , 5 We...
 
jitender lakhanpal 10 months ago
 
Hey jitendra i wanted to know how you finded those five cases what will be the cases when it will be asked for four digit number .basically I want to know the trick to solve these type of...
 
shubham sharma 10 months ago
Find the intervals in which f (x) = |x−2|/ (x2) is strictly increasing and strictly decreasing.
 
 
Ans: f(x)= |x-2|/ x 2 case 1: x-2 < 0 or x<2 ............................................. (1) then f(X) = - (x-2)/ x 2 = -1/x + 2/x 2 for strictly increasing d f(x)/ dx >0 d f(x)/...
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Ajay Verma 5 months ago
 
f(x)= (x-2)/x^2 if x>=2 (2-x)/x^2 if x<2 = 1/x-2/x^2 if x>=2 2/x^2-1/x if x<2 df(x)/dx= -1/x^2+4/x^3 if x>=2 = 1/x^2-4/x^3 if x<2 now, (4-x)/x^3>0 => x(x-4)<0...
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Parvez ali 5 months ago
 
THANKYOU
 
KOMATI UMESH 5 months ago
Find the equation of the lines which pass through the point of intersection of the lines 4x-3y-1=0 and 2x-5y+3=0 and are equally inclined to the axes.
 
 
Intersection point of 4x-3y-1=0 & 2x-5y+3=0 is (1,1). if lines are equally inclined with the axes then slope of lines either 1 or -1. so equations of lines are y-1=1(x-1) & y-1=-1(x-1)...
 
sunil raikwar one month ago
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