Use a half-angle identity to find the exact value of the following expression. tan 15° Which...

Question

Question

Use a half-angle identity to find the exact value of the following expression. tan 15° Which of the following is the correct

Answer 1

Answer #1

Use the half angle formula dan la) 1- Cosa Sina given that 7 dan 15° Ion 15° = tan tan (30°) tan (2) then, cos a = Con 30° 11

Answer 2

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