Find the slope of the tangent line to the polar curve r = 2 + 2 cos(theta) at theta = pi / 2.
Answer and explanation
Correct answer: A. 1
- Step 1: For use with . Step 2. At : and . Step 3. Numerator: . Denominator: . Step 4. The slope is . Answer: 1. Why not the others: '-1' flips one sign; '0' treats the numerator as zero; '-2' forgets to divide by the denominator.
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