Предмет: Геометрия, автор: РиТуСиЧкА2002

найти sin a, если cos a=√15/4
срочнооо

Ответы

Автор ответа: MrCalling
0
sina=+-√1-cos²a
sina=+-√1-15/16=+-√1/16=+-1/4
Автор ответа: РиТуСиЧкА2002
0
неправильно
Автор ответа: РиТуСиЧкА2002
0
спасибо большое
Автор ответа: РиТуСиЧкА2002
0
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