Question

If AABC is right angled at C then the
value of sec (A + B) is
(a) o
(b) 1
2.
(d) not defined​

Answer 1

Answer:

d) not defined

A+B=90

and sec(90) is not defined

hope it helps u dear☺️☺️☺️

Answer 2

Answer:

(d) not defined

Step-by-step explanation:

∠A + ∠B + ∠C = 180°

∠A + ∠B + 90° = 180°

∠A + ∠B = 90°

sec ( A + B )

= sec 90°

= 1 / cos 90°

= 1 / 0

= not defined