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ConceptDerivatives of Composite Functions - Chain Rule

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#### Question

If y = e^{ax}. cos bx, then prove that

`(d^2y)/(dx^2)-2ady/dx+(a^2+b^2)y=0`

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#### Reference Material

Solution for concept: Derivatives of Composite Functions - Chain Rule. For the courses 12th CBSE (Arts), 12th CBSE (Commerce), 12th CBSE (Science), 12th HSC Arts, 12th HSC Commerce, 12th HSC Commerce (Marketing and Salesmanship), 12th HSC Science (Computer Science), 12th HSC Science (Electronics), 12th HSC Science (General) , 12th ISC (Arts), 12th ISC (Commerce), 12th ISC (Science), PUC Karnataka Science