In a computer game, a bird flies at a height of 1,281 feet. at the same time, a fish swims 282 feet below sea level. what is the difference between the height of the bird and the depth of the fish?

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b