Answer:
It will always be the case when A and B are opposites
Step-by-step explanation:
sin(x) = -sin(-x) so ...
sin(A -A) = (A -A) = sin(A) -sin(A) = 0
That is, the given expression is true when B=-A.
Answer:
126
Step-by-step explanation:
7x6=42
7x6÷2=42÷2=21
42+21=63
63+63=126
Answer: 3; 3; 5; 8; 13; 21; 34; 55.
Try this option:
Step-by-step explanation:
the sum of the previous terms is the next term:3+5=8; 5+8=13; 8+13=21, then
13+21=34 and 21+34=55.
Answer:90 degrees
Step-by-step explanation:
Angle b is a right angle