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Using a Sum or Difference Identity, Write the Following as an Expression

Question 214

Multiple Choice

Using a sum or difference identity, write the following as an expression involving functions of x.
- sin⁡2x(cot⁡2x+1) \sin ^ { 2 } x \left( \cot ^ { 2 } x + 1 \right)


A) −1- 1
B) 1
C) cos⁡2x+1\cos ^ { 2 } x + 1
D) tan⁡2x\tan ^ { 2 } x

Correct Answer:

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