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cos (x+30)-cos (x-30)=p cos 2 x=... a. 1-2 p^(2) d. p^(2)-1

Saluran Edukasi
Saluran Edukasion 2024-03-22T14:37:00
cos (x+30)-cos (x-30)=p cos 2 x=... a. 1-2 p^(2) d. p^(2)-1
source: https://youtu.be/P9Q8GB8ckVM

cos (x+30)-cos (x-30)=p cos 2 x=... a. 1-2 p^(2) d. p^(2)-1 b. 1+2 p^(2) e. 2 p^(2)-1 c. 1+p^(2)

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