If 81^0.4 = x, 81^0.78 = y and x^z = y², then the value of z is closest to?

Subject: Mathematics | Topic: Algebra | Difficulty: MEDIUM

Options

1. (A) 2.9
2. (B) 1.9
3. (C) 4.9
4. (D) 3.9

Verified Answer

Option (D): 3.9

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