tonii01
02.12.2020 •
Mathematics
Sion? Asin3 A 1
+ 4 L
(-siasa
-sins A + zsin3A - sina)sin square a sin 3A is equal to 1 divided by 4 (1 - sin 5 A + 2 Sin 3 a minus sin a bracket
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Ответ:
4x + x = 6 + 9
5x = 15
x = 3