ahanifpk ahanifpk

01-06-2020
Mathematics

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2. Use the unit circle to find the value of cot (–90°).

BRAINLIEST 2 Use the unit circle to find the value of cot 90 class=

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jimrgrant1 jimrgrant1

01-06-2020

Answer:

cot(- 90)° = 0

Step-by-step explanation:

Using the identity

cot x = [tex]\frac{cosx}{sinx}[/tex] , then

cot(- 90)° = [tex]\frac{cos(-90)}{sin(-90)}[/tex] = [tex]\frac{0}{-1}[/tex] = 0

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