SOLUTION: Help in thank you for this website of helping me my question is:
Using the 1/2 angle formula:
What is sin π/8
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Question 741290: Help in thank you for this website of helping me my question is:
Using the 1/2 angle formula:
What is sin π/8
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
we are given
Using the 1/2 angle formula:
What is sin π/8
sin(π/8)
= sin((π/4)/2)
= √[(1 - cos(π/4))/2] using half angle formula for sin function
= √[(1 - (.53))/2] note that pi = 180 degrees so evaluate cos (45 degrees)
= √[.47/2] = .48
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