Using Linearity Of Inner Product

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Let assume we are looking at the euclidian inner product above $\mathbb{R}^3$ namely $$\langle u, v \rangle=\sum_{i=1}^{3}u_i\cdot v_i=u_1v_1+u_2v_2+u_3v_3$$

Now looking if we have:

$$u=(cosb-a^2cos(3b),sinb+a^2sin(3b),2a\cdot cos(2b))$$ and $$v=(-asinb+a^3sin(3b),acosb+a^3cos(3b),-2a^2sin(2b))$$

How would we take $$\langle u, v \rangle$$ Can we use linearity?

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yes you can expand with the ordinary rules for inner product