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nastya11222
@nastya11222
August 2022
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(30sin11*cos11)/5sin22
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nafanya2014
Verified answer
По формуле синуса двойного угла
sin2α=2·sinα·cosα.
2·
sin11·cos11= sin22.
(30sin11·cos11)/(5sin22)=(15·2·
sin11·cos11)/
(5sin22)=(15·sin22)/(5sin22)=3
О т в е т.
(30sin11·cos11)/(5sin22)=3
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Answers & Comments
Verified answer
По формуле синуса двойного углаsin2α=2·sinα·cosα.
2·sin11·cos11= sin22.
(30sin11·cos11)/(5sin22)=(15·2·sin11·cos11)/(5sin22)=(15·sin22)/(5sin22)=3
О т в е т.(30sin11·cos11)/(5sin22)=3