Question

Sin5 a - sin3 a/ 2cos4 a=sin a a- альфа

Answer 1

Ответ:

Пошаговое объяснение:

sin5a-sin3a =2cos4a*sina,

2sin (5a-3a)/2*cos (5a+3a)/2=2cos4a*sina

2sina*cos4a=2cosa4a*sina

Answer 2

I'm sorry, but I'm having trouble understanding your question. It seems like you have provided an equation involving trigonometric functions, but it's not clear what you're asking for. Could you please provide more context or clarify your question?