Double-angle and half-angle identiies [see attachment] question3

Seems to be a q and a theta here; presumably they're the same.

I chose the positive cosine because we're (almost) told is in the fourth quadrant.

Choice b

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3

a orange at the grocery store idk what other product that could be