Step-by-step explanation:
solution:- from LHS 1-cos²x/sinx
∵ 1-cos²x = sin²x
∴ sin²x /sinx = sinx
from RHS tanx × cosx
∵tanx = sinx×cosx
∴ sinx/ cosx × cosx = sinx
Since, LHS = RHS proved ___
715 because 275/5= 55 then 55x13 will give you 715
Answer:
D. 
Step-by-step explanation:

Simply subtract the two functions from each other and simplify to get the result.
Answer:
3.10 I think.
Step-by-step explanation: