Mathematics
Senior High
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赤で囲んであるところから矢印までどうやったらこうなるのか詳しく教えてください!!

√3 X √2 √3 2 an 195-tan (150+45)=tan 150+tan 45 H √3 +1 1-(-3)x 1-tan 150 tan 45 -1+√3 √3+1 (√√3 4-2√3 -2-√3 2 2 sin 195 sin (135++-60)=sin 135°cos 60°

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