Question

If a²x⁴ + b²y⁴ = c⁶, then maximum value of xy is :

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

a²x⁴ + b²y⁴ = c⁶

Q A.M ³ G.M.

̃ ³$\sqrt { \left( a ^ { 2 } x ^ { 4 } \right) \cdot \left( b ^ { 2 } y ^ { 4 } \right) }$

̃ ³ abx²y²

̃ ³ xy

¯

Max. Value