CA Foundation doubt
What os answer of question no 9 with steps

Asked by Prashant4 May 2024281 views
CA Foundation doubt

Asked by Prashant4 May 2024281 views
Prashant · 4 May 2024
Tnx bhai
Bheem · 4 May 2024
x ^ 2 + y ^ 2 = 7xy , then log(1/3) * (x + y) = (x + y) ^ 2 = x ^ 2 + y ^ 2 + 2xy (x + y) ^ 2 - 2xy = underline x^ 2 +y^ 2 -0 (x + y) ^ 2 - 2xy = 7xy (x + y) ^ 2 = 7xy + 2xy = 9xy x + y = sqrt(4) * xy = 3 Jay log(1/3) * (x + y) = log_3(3sqrt(x) * y) = log xyz =logxy = 1/2 * log(x) + 1/2 * log(y) = 1/2 * (log(x) + log(y))
Prashant · 4 May 2024
Bhai step bhi Bata na
Bheem · 4 May 2024
Answer is option 2
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