Напишите выражение в виде произведе
sin40°- sin 16°
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sin40+sins16=2cos (40+16)/2 cos (40-16)/2=2cos 28 cos 12
sing40-sin16=2cos (40+16)/2 sin (40-16)/2=2cos 28 sin 12
sing40-sing16=2sin (40+16)/2 cos (40-16)/2=2sin 28 cos 12
sin040+sin16=2sin (40+16)/2 sin (40-16)/2=2sin 28 sin 12​
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