Ответы на вопрос:
1) = 2^4·1/4 - 1/3 + 3^3·1/3 = 2 - 1/3 + 3 = 5 - 1/3 = 4 2/3 2)= cos π/8 sin 5π/8 + sin 5π/8 sin 3π/8 = sin 5π/8( cos π/8 + sin 3π/8)= =sinπ/8( cos π/8 - cos 5π/8) = sin π/8·2sin 3π/4·sin π/2= 2 sinπ/8 ·√2/2·1 = √2sin π/8= √2·√(1 - √2/2)/2)= √2/2·√(2 - √2) 3)√(-24 - 5х) = 4 |² -24 -5x = 16 -5x = 40 x = -8
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