
which follows from the power series representation for

,

and taking

.
Answer:
A and C
Step-by-step explanation:
First part your answer is 8 second part is c.
The answer is C,
as she uses SSS to prove its congruent, she uses sides instead of angles so option a and d is not correct. as it needs to prove triangle pqr is congruent to triangle sqr, its not necessary to prove PQ is equal to QR. so the answer is c