If the area and angle of are given

MATHEMATICS · Multi correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

If the area

\Delta

and angle

C

\triangle ABC

are given, and the side

c

opposite angle

C

is minimum, then (1)

a=\sqrt{\dfrac{2\Delta}{\sin C}}

(2)

b=\sqrt{\dfrac{2\Delta}{\sin C}}

(3)

a=\dfrac{4\Delta}{\sin C}

(4)

b=\dfrac{4\Delta}{\sin^2 C}