Answer :
Answer:
a = 160⁰
Step-by-step explanation:
sin a = 0.3421
a = arcsin (0.3421)
a = 20⁰ approximately
Since 90 < a < 180 then
a = 180⁰ - 20⁰
a = 160⁰ since sine is also positive in the second quadrant.
Hence, a = 160⁰
Answer:
a = 160⁰
Step-by-step explanation:
sin a = 0.3421
a = arcsin (0.3421)
a = 20⁰ approximately
Since 90 < a < 180 then
a = 180⁰ - 20⁰
a = 160⁰ since sine is also positive in the second quadrant.
Hence, a = 160⁰