I wrote ones but I hope it’s right and helps
Explanation is in a file
bit.
ly/3a8Nt8n
80% or 4/5
Since there are 2 blacks shirts and 10 in total the probability is of not poking a black shirt is 8/10 which when reduced is 4/5
The restriction of the given equation is
, other than 0≤x≤2π.
What is restriction of equation?
Restriction of the equation is the value of domain where the value is limited.
Given,

taking
common, we get

we know

we get,

and the restriction is 0≤x≤2π.
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Answer:
i think its B
Step-by-step explanation: