If cos A - sin B-2 sin C- then in -ABC

The correct options are A c = a D sin B = sin 2C cosA=sinB2sinC using cosine rule and sine rule b^2+c^2 a^22bc=b2c b^2+c^2 a^2=b^2 ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Sum of Trigonometric Ratios in Terms of Their Product

If cos A = ...

Question

If $c o s A = \frac{s i n B}{2 s i n C}$ , then in $Δ$ ABC

c = a

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

b = c

No worries! We‘ve got your back. Try BYJU‘S free classes today!

c o s B = c o s 2 C

No worries! We‘ve got your back. Try BYJU‘S free classes today!

s i n B = s i n 2 C

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

Suggest Corrections

Similar questions

c o s A c o s B + s i n A s i n B s i n C = 1

a : b : c

A + B + C = 0

0

\neq π

sin 2 A + sin 2 B + sin 2 C = 2 (sin A + sin B + sin C) (1 + cos A + cos B + cos C)

△ A B C, cos A = \frac{sin B}{2 sin C}

If cos a + cos b + cos c = 0 = sin a + sin b + sin c

cos²a + cos²b + cos²c = ?

A + B + C = 180^{\circ}

cos A + cos B + cos C

2 + 2 cos A cos B cos C

{sin}^{2} A + {sin}^{2} B + {sin}^{2} C

4 cos \frac{A}{2} cos \frac{B}{2} cos \frac{C}{2}

sin 2 A + sin 2 B + sin 2 C

1 + 4 sin \frac{A}{2} sin \frac{B}{2} sin \frac{C}{2}

sin A + sin B + sin C

4 sin A sin B sin C

Join BYJU'S Learning Program