Question

If angle AB =12 ,BC=13 and angle (B+C)=angle A.Then find the angle C?​

Answer 1

Answer:

with reference to ∠B, we have 

Base = AB = 12, Perpendicular = AC = 5 and, 

Hypotenuse = BC = 13

Using the definitions of trigonometric ratios, we have 

sinB=BCAC=135

cosB=BCAB=1312

tanB=ABAC=125

cosecB=ACBC=513

secB=ABBC=1213

and cotB=ACAB=512