0.4. If tan (A+B) = 13 and tan (A - B) =
1
T3
=, 0<A+B < 90°,
(J.D. 2016, 14, 13, 12)
find A and B.
Answers
Answered by
0
(A+B)=13 equation 1
(A-B)=1. equation2
add equation 1. and 2
2A=14
A=14/2
A=7
B= 6
Similar questions