4. Use Euler's formula to derive the sum formulas for sin(a + b) and cos(a + b) from Section 5.2. Hint: Begin by using Euler's formula on both sides of the following identity. ei(a+b) = eia eib

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4.
Use Euler's formula to derive the sum formulas for sin(a + b) and cos(a + b) from
Section 5.2. Hint: Begin by using Euler's formula on both sides of the following identity.
ei(a+b)
= eia eib
Transcribed Image Text:4. Use Euler's formula to derive the sum formulas for sin(a + b) and cos(a + b) from Section 5.2. Hint: Begin by using Euler's formula on both sides of the following identity. ei(a+b) = eia eib
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