wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If x+y=5 and xy=6 If x>y then x−y is equal to


A

2

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

1

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

4

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

3

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B

1


Given x+y=5, xy=6

(x+y)=5

Squaring both sides we get

(x+y)2=52

from binomial identities

(x+y)2(xy)2=4xy

52(xy)2=4×6

2524=(xy)2

(xy)=±1

Since x>y

xy=1


flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon