Question

2. Solve for x in sin(x-15)-cos(x+5)=0​

Answer 1

`\sf\\sin(x-15)-cos(x+15)=0\\or,\ sin(x-15)=cos(x+15)\\or,\ sin(x-15)=sin\{90-(x+15)\}\\or,\ sin(x-15)=sin(75-x)\\or,\ x-15=75-x\\or,\ 2x=90\\or,\ x=45`