How can we alot the equation number in the answer box? I need to mark my equation
$$\sin^x+\cos x=15$$ as $1.1.$ But i don't know how can i do this. Kindly help me to the thing so..
I am using $\clubsuit$ and number at the end of the questions and I am using the same numbers where I need to refer. Is this the only way to do it?