Question

If sinA = sinB and cosA = cosB, then which of the
following is correct?

A) cos ((A-B)/2 ) = 0
B) sin((A-B)/2 ) = 0
C) sin ((A+B)/2) = 0
D) cos((A+B)/2 ) = 0​

Answer 1

Answer:

B

is the correct option

Step-by-step explanation:

sinA=sinB

A=B

sin (A-A/2)

sin0

o

Answer 2

Answer:

꧁OPTION (B)꧂

Step-by-step explanation:

$\sin( \frac{a - b}{2} ) = \sin(0) = 0$