4. Find the value of k, if , is a solution of the equation .
Given :
Putting (2,1),
we have ,
Therefore, k=7 for putting x=2 and y=1.
CBSE Class 10 board exams from February 15 to March 18; download date sheet 2025 PDF
CBSE Date Sheet 2025 Live: CBSE Class 10, 12 board exam timetable soon at cbse.gov.in; practical dates
CBSE Date Sheet 2025 Live: CBSE to announce Class 10, 12 board exam dates soon at cbse.gov.in; sample paper
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