Question

$$f(x)= \sin x, \sqrt{ 3 } f(x)-f( \pi /2+xx)$$

Answer

f=sin(x)/x,0

Solution


Use Product Rule: \({x}^{a}{x}^{b}={x}^{a+b}\).
\[fx=\sin{x},\sqrt{3}fx-f(\frac{\pi }{2}+{x}^{2})\]
Break down the problem into these 2 equations.
\[fx=\sin{x}\]
\[fx=\sqrt{3}fx-f(\frac{\pi }{2}+{x}^{2})\]
Solve the 1st equation: \(fx=\sin{x}\).
\[f=\frac{\sin{x}}{x}\]
Solve the 2nd equation: \(fx=\sqrt{3}fx-f(\frac{\pi }{2}+{x}^{2})\).
\[f=0\]
Collect all solutions.
\[f=\frac{\sin{x}}{x},0\]