Root both sides of the equation
x+3= plus or minus root 7
Subtract 3 from both sides.
Answer:
huh
Step-by-step explanation:
umm no one will know the answer
EVER
Answer:965.3
Step-by-step explanation:
Its like that because your graphing it like A (1,2)B(2,5) Pretend your graphing something
Cosx= sin(90-x)
From the RHS,
sin(90-x)= sin90cosx-cos90sinx
Since sin90=1, cos90=0
sin90cosx-cos90sinx=cosx-0=cosx (proven)