find the equation of a line passing through the origin and making an angle of 120 degree with the positive direction of the x-axis

Asked by nakulashish47 | 24th Sep, 2015, 11:26: AM

Expert Answer:

E q u a t i o n space o f space a n y space l i n e space p a s sin g space t h r o u g h space o r i g i n space c a n space b e space w r i t t e n space a s y equals m x comma space w h e r e space apostrophe m apostrophe space i s space t h e space s l o p e space o f space t h e space s t r a i g h t space l i n e. G i v e n space t h a t space t h e space l i n e space m a k e s space a n space a n g l e space o f space 120 to the power of o space w i t h space p o s i t i v e space d i r e c t i o n space o f space X minus a x i s. H e n c e comma space s l o p e space o f space t h e space s t r a i g h t space l i n e space i s space tan 120 to the power of o equals negative square root of 3. H e n c e comma space e q u a t i o n space o f space t h e space l i n e space i s space y equals negative square root of 3 x

Answered by satyajit samal | 24th Sep, 2015, 12:07: PM