Is it permissible for a woman observing 'iddah to go to the mosque to perform Tarawih prayers before her 'iddah period ends, and is it permissible for her to carry out her work in a grocery store located in the same house she lives in, and is it permissible for a visitor to a cemetery to eat from any tree planted inside the cemetery?

A woman observing 'iddah (definition) (waiting period) after her husband's death is required to stay in her home at night and is not permitted to go out except for necessity. Tarawih prayers are not considered a necessity. However, she is permitted to go out during the day for work and to fulfill her needs, such as visiting a hospital or purchasing necessities. Therefore, there is no harm in her working at a grocery store during the day. As for eating from trees planted in graveyards, there is no harm in it, knowing that women are forbidden from visiting graves.