• anonymous
Trig Identities Question: say we have sin(x+deltax) = sinx*cosdeltax + cosx*sindeltax and we want to introduce -sinx on both sides. So, how can I put -sinx on the left, and a -1 on the right like this: sin(x+deltax) - sinx = sinx*(cosdeltax-1) + cosx*sindeltax Professor Strang is doing this in a video lecture, and I want to understand what the basis for this is. Can you help me understand this?
Mathematics
• Stacey Warren - Expert brainly.com
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SOLVED
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