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Ramon paid $3.25 for notepads and $1.80 for markers. what is the total number of items he bought?
2 answers:
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Answer:
cot²x
Step-by-step explanation:
Using the identity
sin²x + cos²x = 1, then
1 - sin²x = cos²x
1 - cos²x = sin²x
Thus
=
= cot²x