Equation is true when k is :
(A)
(B)
(C) 1
(D) − 1
Answers
Answered by
1
Answer:
(B) -1/5
Step-by-step explanation:
RHS:
Comparing the LHS and RHS:
Answer: (B) -1/5
Answered by
1
HELLO DEAR,
GIVEN:-
25x² - 2xy + y²/25 = (5x + ky)²
So , 25x² - 2xy + y²/25 = 25x² + k²y² + 10kxy
On comparing BOTH side,
We get,
-2xy = 10kxy & y²/25 = k²y²
=> K = -2/10 & k² = 1/25
=> K = -1/5 & k = ±1/5
Hence, option (b) is correct [as -1/5 satisfied both]
I HOPE IT'S HELP YOU DEAR,
THANKS
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