SOLUTION: 1. Use a calculator to find the approximate value of arcsin(0.72). 2. Find the exact real value of arccos the quantity one half.

Question 1015676: 1. Use a calculator to find the approximate value of arcsin(0.72).
2. Find the exact real value of arccos the quantity one half.
Answer by ikleyn(52800) (Show Source): You can put this solution on YOUR website!
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2. Find the exact real value of arccos the quantity one half.
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You need to find the angle = .
So, = .

What angle is this?

Surely, = = 60 degrees.

Hence, = = 60 degrees.

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