Question

principal solution of sin x = -1/2 is​

Answer 1

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Answer 2

Answer:

x  = 7π/6, 11π/6

Step-by-step explanation:

sin x  is negative in the  III rd  and  IV th quadrants.

since, sin(π)/6 = 1/2

sin x   would be − 1 /2  for  x= π + π/ 6   and for  x  =  2 π − π/ 6 .

The Principal solution is this

x  = 7 π /6 ,  11 π/ 6 .