Answer:x=-20
Step-by-step explanation:
I dunno I rlly don't know like seriously I'm in 7th
The missing justification in the proof is
<span>B) Substitution property of equality
The expression for sin</span>² x and cos² x is substituted to the other side of the equation. Since sin x = a/c, then sin² x = a²/c². Similarly, since cos x = b/c, then cos² x = b²/c². Adding to two results to the third statement.
A and E
Whole numbers and integers
