Question

If in triangle ABC, right angle C=90 degree ,then sin (a+b)

Answer 1

Answer:

since C=90°

Sin(a+b)= 1

Answer 2

Answer:

a + b + c = 180°(angle sum property)

c = 90° (given)

a + b + 90°= 180°

a + b = 180°- 90°

a + b = 90°

each angle measure = 45°