Trigonometry Question
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Grade 11 Trigonometry CCSS: HSG-SRT.D.10
Which of the following is true concerning the law of cosines formula for a right triangle? Choose all correct answers.
- It simplifies to the Pythagorean Theorem for the right angle.
- It simplifies to the Pythagorean Theorem for all angles.
- It can be easily proven for the acute angles, mainly using the Pythagorean Theorem and the cosine ratio for that angle.
- It cannot be applied to right triangles.