Simplify: (2 + 1)^2 Plz
2 answers:
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Answer:
B) All real numbers except 0 and integer multiples of 8π∕5
Step-by-step explanation:
Cotangent function:
The cotangent function is given by:
Domain:
All real values except those at which:
The sine is 0 for 0 and all integer multiples of
In this question:
, so the values outside the domain are 0 and the integer multiples of
. Then the correct answer is given by option b.