No. One or the other, not both. You are not heating the brooder. You are providing a heat source for the chicks to restore lost body heat that isn't being replaced by food calories alone.
Ambient temperature plays a big role. If someone is raising chicks in the tropics or south Texas, chicks may not even need a heat source if the ambient temp matches their body temp. That would cause the chicks to lose no body heat if it's 100F.
Even at 70F, chicks may not need heat during the day as long as they are consuming calories. It's all an issue of how much body heat a chick will lose according to how cold it is. Too much heat is worse than too little.
If you use a heating pad instead of an overhead lamp, the chicks will utilize the heat much better if they can crawl under the pad and warm from direct contact with it, but never use any heating pad without the cloth cover to diffuse the heat or the chick can get burned.