Considering only the values of β for which (1+cosβ)(1−cosβ)sinβ is defined, which of the following expressions is equivalent to
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<h3>Trina uses 3.44 or 
pints of white paint</h3>
<em><u>Solution:</u></em>
Given that,
Trina uses 8.6 pints of blue paint and white paint to paint her bedroom walls
3/5 of the amount is blue paint, and the rest is white paint
From given,
3/5 of 8.6 pints is blue paint
Thus, 2/5 of 8.6 pints is white paint
<em><u>How many pints of white paint did she use to paint her bedroom walls? </u></em>
Thus she uses 3.44 or 17.2/5 pints of white paint
The square of a binomial is written like
In your case, you have , which implies
So, we want to write
But our left hand side is
If we add 26 to both sides, we have