Class 8 ncert text book chapter 9 9.2qns 1 a

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

If g(x) is an odd function, which function must be an even function?

The sum of two numbers is 86, and their difference is 20. find the two numbers