All of the following are pythagorean identities except a. sec^2(x)+1=tan^2(x) b.1+cot^2(x)=csc^2(x) c. sin^2(x)+cos^2(x)=1 d. tan^2(x)+1=sec^2(x)

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

i can answer this if i have the answer choices