The expanded form is adding all the digits so the answer is
700+50+7+0.9+0.02+0.003
Answer:
1.
Step-by-step explanation:
The thing is, x^0 is always 1. So even if you simplify, it will still be 1.

Answer:
I believe the answer is A
Step-by-step explanation:
Distributive property
Step-by-step explanation:





Note: I used the identity

for the last step.
PS. I love proving trigonometric identities!