Question

prove the above imge​

Answer 1

Answer:

(Sin⁴Φ + Cos⁴Φ) / 1 - 2Sin²Φ. Cos²Φ

(Sin²Φ)² + (Cos²Φ)²/ Sin²Φ + Cos²Φ - 2Sin²Φ. Cos²Φ ( Sin²Φ + Cos²Φ = 1 )

(Sin²Φ + Cos²Φ)² / Sin²Φ + Cos²Φ

(1)²/1 = 1/1 = 1 = RHS (Hence proved)

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Answer 2

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