Question

Jija tan a 3/4 dan a+b =315 tan b adalah?

Answer 1

Verified answer

TriGonoMetRi

tan a = 3/4
a + b = 315°

tan (a + b) = tan 315°
(tan a + tan b)/(1 - tan a tan b) = -1
tan a + tan b = tan a tan b - 1
3/4 + tan b = 3/4 tan b - 1
tan b - 3/4 tan b = -3/4 - 1
1/4 tan b = -7/4
tan b = -7 ✔