ответ:Sin^6α-cos^6α-(3/4)*cos²2α+(3/4)*sin²α sin^6α-cos^6α-(3/4)*cos²α+(3/4)*sin²α= -(cos^6α-sin^6α)-(3/4)(cos²α-sin²α)= -(cos²α-sin²α)(cos^4α+sin²α*cos²α+sin^4α) -3/4(cos²α-sin²α)= -(cos²α-sin²α)(cos^4α+sin²α*cos²α+sin^4α -3/4)= -cos2α((cos²α+sin²α)²-cos²α*sin²α -3/4)= - cos2α(1-(1/4)*sin²2α -3/4)= - cos2α(1/4-(1/4)*sin²2α)= - (1/4)cos2α*(1-sin²2α) = - (1/4)cos2α*cos²2α= - (1/4)cos³2α .
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Сума: 30 + 32 + 34 + 38 + 42 + 44 + 48 + 52 + 54 + 58 + 60 + 62 + 64 + 68 + 72 + 74 + 78 + 82 + 84 + 88 + 90 + 92 + 94 + 98 = 1,538
Середнє арефметичне: (30 + 32 + 34 + 38 + 42 + 44 + 48 + 52 + 54 + 58 + 60 + 62 + 64 + 68 + 72 + 74 + 78 + 82 + 84 + 88 + 90 + 92 + 94 + 98) : 24 = 1,583 : 24 =65.9583