sin5a = 5sinacos^4a-10cos^2asin^3a+sin^5aпацаны помогите решить плес
>>141072179 (OP)http://www.wolframalpha.com/input/?i=sin5a+%3D+5sinacos%5E4a-10cos%5E2asin%5E3a%2Bsin%5E5a