Answer:
56
Step-by-step explanation:
7 heartbeats *8 minutes = 56
I think D but don’t take my word for it
D
Absolute Value of a number is the positive of whatever to total value is. For example |-12| = 12, and |32| = 32
We have to find the domain of y = cotx
We know that cotx = cos
x / sinx
And also when sinx becomes zero cotx becomes undefined
And again we know that value of cosx and sinx can be between -1 to 1
But value of cotx can lie in between -∞ to +∞
Just for example cot30 is cos30 / sin30
= √3/2/1/2 = √3
Therefore domain of cotx is x
x ∈ R , x ≠ πn for any integer n
