Question

solve this question mate plzz​

Answer 1

Answer:

√1+cos 0+√1-cos 0=2cosec0

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√1-cos 0    1+cos 0

Step-by-step explanation:

e below cos^(-1)0=arccos 0 What is the arc which cosine is zero?: two posibilities 90=pi/2 and 270=3pi/2 This is assuming that cos^(-1) is the inverse of cosine. There is no missunderstanding if use arccos instead of cos^(-1) Because cos^(-1) is also understud as 1/(cos)=sec which is different

How do you find the exact value of cos 180degrees

5/24/2018

Why is cos(0) = 1? | Socratic

Answer 2

Answer:

I think this will help you