g a study by Children’s Hospital in Boston reports that about two-thirds of adult Americans and about 15% of children are overwe
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The acceptable first step in simplifying the expression is (a)
The expression is given as:
To change the form of the expression, we simply perform several arithmetic operations on it.
Start by multiplying the expression by 1/1
Express 1 /1 as (1 - sec x)/(1 - sec x)
Rewrite the above expression as follows:
Hence, the acceptable first step is (a)
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