Question

If triangle ABC is right angled at C, then the value of sin( A+ B)

is……..

10. 9 sec 2 ​

Answer 1

Answer:

1

Step-by-step explanation:

The answer is 1 because the other angles than C which are A and B will be equal to 90 degree as A+B+C is equal to 180 degrees and Sin 90 degree is 1