Question

Trig help

Answer 1

\[\frac{ sinA -sinB }{ cosA + cosB } + \frac{ cosA - cosB }{ sinA + sinB } = 0\]

Answer 2

@rvc

Answer 3

I would find a common denominator

Answer 4

@welshfella

Answer 5

I'll start it off for you

sin^2A - sin^2B + cos^2A - cos^2 B
= --------------------------------
(sinA + sinB)(cosA + cosB)

Answer 6

what does the numerator simplify to?

Answer 7

sin^2A - sin^2B + cos^2A - cos^2 B
= sin^2A + cos^2A - ( sin^B + cos^2 B)

Answer 8

1 - 1 = 0

Answer 9

* sin^2 B

Answer 10

right
that's it

Answer 11

THANKS!