Question

(tan 60+1/tan 60 -1)^2=1+cos 30/1-cos 30​

Answer 1

Answer:

1

Step-by-step explanation:

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Answer 2

Answer:

Effects of Air Pollution

High levels of air pollution can cause an increased risk of heart attack, wheezing, coughing, and breathing problems, and irritation of the eyes, nose, and throat. Air pollution can also cause worsening of existing heart problems, asthma, and other lung complications.