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Jitendra Khatri

· started a discussion

· 1 Months ago

quen no 6 (Question:99286.0)

give detailed

Question:
if x+y = 25 and x2y3 +y2x3 =25, what is the value of xy?
Options:
A) 0
B) ±1
C) 5
D) 4
Solution:

Ans: (b) x2y3 +y2x3 =25

⇒ x2 y2 (x + y) = 25

⇒ (xy)2 (x + y) = 25

⇒ (xy)2 = 1       

(∵ x + y = 25)

⇒ xy = ± 1

Knowledge Expert

· commented

· 1 Months ago

Dear student,
Please read the solution properly.
Keep learning,
Team TR

SUSHIL MEENA

· commented

· 1 Months ago

solution chek kar le samjh aa jayega
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