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Problem $1($Practice of scalar$-$based backpropagation$).$ You are required to calculate the gradients of

$f(x,w)=\frac{1}{2+si{n}^2(x_1{w}_1)+cos(x_2{w}_2)}$

with respect to $x_i$ and $w_i$

Use computational graph for calculation

Note: You are free to choose the inputs of your computational graph.