I just have a pretty simple question, if someone could show me how it's done that would be great! Complete the fundamental identity: cos(w-z) using Angle Difference which is cos( θ- φ) = cosθcos φ + sinθsin φ
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Originally Posted by alexcross I just have a pretty simple question, if someone could show me how it's done that would be great! Complete the fundamental identity: cos(w-z) using Angle Difference which is cos( θ- φ) = cosθcos φ + sinθsin φ (cosw)(cosz)+(sinw)(sinz)
So is this as far as I can go in the problem?
Yes, unless you have more special info about the variables in question.
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