Tan² B = 4
(tan B)² = 4
tan B = ±2
Basic Angle
= tan^-1 2
= 63.4° (1dp)
B = 63.4°, 116.6°, 243.2°, 296.6°
Assuming you're actually supposed to present your answers in 0dp, then all answers apply.
The answer is D..............
20 is....
Composite
Factors:1,2,10,20
Answer:
Step-by-step explanation:
Missing sides or angles??
If it's missing sides... Then using sine rule
A/ sin A = B/ sin B
Let sin A =30° and A=8
Let sin B=60° and B =?
Hence 8/sin 30°=B/sin 60°
Multiplying 8 x sin 60 =B sin 60
6.928 = 0. 5B
Dividing both sides by 0.5
Hence B= 13.856
doing same for side c
Let sin A =30° and A =8
Let sin c =90° and C =?
Hence 8/sin30° = C/sin 90
Sin 90° x8 =. 0.5c
Sin 90=1
1x8 =0.5c
Dividing both sides by 0.5 gives 16
Hence C=16
