What is the exact value of math problem cot 420 in trigonometry problem of math solutions Please let me know it's answer please
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Answer:
cot(420)
=cot(360+60)
since,it lies in first quardant so its value will be positive
now,cot(360+60)=cot60=1/√3
it is cot 60 because 360 is even multiple of 90 so,in case of even multiple same trigonometric ratio is taken with + or - sign,depending in which quadrant it lies.
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