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Question:

What is the value of cos−1(−1/2)?

 

My Answer:

2π/ 3

 

**one more**

Question

cos(sin^−1(−0.435))

 

My answer

√0.810775

 Dec 12, 2020
edited by lovesosa12  Dec 12, 2020
 #1
avatar+112022 
+2

Yes that is correct.

 Dec 12, 2020
 #2
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+1

thank you

lovesosa12  Dec 14, 2020

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