Answer:
465.81
Step-by-step explanation:
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Recall the double-angle identity,
sin²(<em>x</em>) = (1 - cos(2<em>x</em>)) / 2
Now if sin(12°) = <em>k</em>, then
<em>k</em> ² = sin²(12°) = (1 - cos(24°)) / 2
→ cos(24°) = 1 - 2<em>k</em> ²
-15,-12,-9,-6,-3,0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51
Answer: C
Step-by-step explanation:
They are a reflection and congruent by side, side, side