Answer:
82° ; 50° ; 52° ;domain error ;51° ; domain error
Step-by-step explanation:
Using a calculator :
sin(A) = 0.9903
A = sin^-1(0.9903) = 82.01 = 82°
6.) cos(A) = 0.6428
A = cos^-1(0.6428) = 49.99 = 50°
8.) tan(A) = 1.2851
A = tan^-1(1.2851) = 52.111 = 52°
9.) cos(A) = 1.2608
A = cos^-1(1.2608) = domain error
10.) sin(A) = 0.7777
A = sin^-1(0.777) = 50.98 = 51°
11.) sin(A) = 1.8330
A = sin^-1(1.8330) = domain error
