Suppose that we use sigmod activation function and square loss function: (t- o)2. The learning rate is a. Derive the formulae for updating Vij and Wij using the gradient descent learning strategy in the backward propagation. For simplicity, we don't have bias in our neural network.

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Use of XOR function

XOR function or exclusive OR function was introduced in Excel 2013. This function is available under excel logical functions. For the given statement, the XOR function will return true only when either of the statements is true. It returns false when both the statements are true or when both the statements are false.