Which of the following is the value of
(sin(30°) – cos(30°))2 ?
Trig Difference in Triangle
Here, we need to
know the basic trig values from the 30-60-90 triangle. The question even gives us a 30-60-90
triangle with sides labeled to help us.
When we square a
difference, we have to use the Square of a Difference formula:
Into that formula, we will plug the values and .
Answer = (E)
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