Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Get accurate and detailed answers to your questions from a dedicated community of experts on our Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

determine angle a if sin a = 0.3421 and 90 < a < 180

Sagot :

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