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Which of the following is the value of
(sin(30°) – cos(30°))2 ?
Title
Trig Difference in Triangle
Your Result
Correct
Difficulty
Hard
Your Pace
0:01
Others' Pace
1:21
Video Explanation
Text Explanation
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)
Related Lessons
Watch the lessons below for more detailed explanations of the concepts tested in this question. And don't worry, you'll be able to return to this answer from the lesson page.
