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70:7MinutesQ.No. 4:. If u=x sin^(-1) (@y)/x })then prove that x^2 (2^2 u)/ (əx) ^2 +2xy (2^2 u)/əxəy +y^2 (2^2 u)/ (ay) 12= 0Instraction: solve step by step |
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Answer» what I cannot UNDERSTAND |
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