MY CART (5)

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
                   

Let p and q be roots of the equations x2 – 2x + A = 0 and let r and s be the roots of the equation x2 – 18 + B = 0. If p < q < r < s are in arithmetic progression the A = ………….. and B = ………… 

3 years ago

Share

Answers : (3)

                                        

The answer is A=10 , B=63 

3 years ago
                                        

 here let p=a,q=a+r,r=a+2r,s=a+3r;


 then here p+q=2            =>2a+r=2


         also r+s=18           =>2a+5r=18


 solving we get r=4,a=-1;


p=-1, q=3, r=7, s=11


A=pq= -3, B=rs = 77;

3 years ago
                                        

I USE PUT & CHECK FORMULA IN THIS QUESTION.


P + Q = 2 , PQ=A ..............(1)


R + S = 18 , RS = B ...............(2)


-1,3,7,11 ARE IN A.P. SATISFYING THE RELATIONS (1) & (2)


SO , P=-1, Q=3 , R=7, S=11


SO, PQ= -3 = A


      RS= 77 = B 

3 years ago

Post Your Answer

please suggest institute in India which offer courses in weapon engineering? what is the procedure for enterance
 
 
Dear student,Institutes like Institute of Armament Technology, Pune, Defence Institute of Advanced Technology, Pune, etc. are offering Masters level degree course M.Tech in Mechanical...
  img
Vijay Mukati one month ago
in jee marks get phc categories students cast bc
 
 
oc category 19 marks
 
KUNCHAM SAMPATH 2 days ago
 
oc category 19 marks
 
L GOUSE BASHA 2 days ago
 
oc category 19 marks...
 
GANESH BABU 2 days ago
Which chapters should i focus on inorganic chemistry for jee advanced??
 
 
solid state,all group elements,electo chemistry ,chemical equilibrium,stoichemetry.
 
vamsi one year ago
 
No. It should be the periodic properties chapter primarily!
 
Pradyumna Sadgir one year ago
 
How to prepare for the various block elements
 
NANDA one year ago
india's national game is ?
 
 
Dear Vandu singh Hockey is national game of india All the best Regards Badiuddin
 
Badiuddin askIITians.ismu Expert 5 years ago
 
it’s hockey
 
SAITEJA GOUD 3 months ago
View all Questions »
More Questions On Discuss with colleagues and IITians

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details