Ответ: 1/2=0.5.
Объяснение:
√2* sin22.5*cos22.5=√2*1/2sin(2*22.5) = √2/2*sin45 =
= √2/2*(√2/2) = 2/4 = 1/2=0.5.
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Ответ: 1/2=0.5.
Объяснение:
√2* sin22.5*cos22.5=√2*1/2sin(2*22.5) = √2/2*sin45 =
= √2/2*(√2/2) = 2/4 = 1/2=0.5.