Simplify \arcsin (\cos (2x)), 0 \leq x \leq (\pi/2) I used

Essence Byrd

Essence Byrd

Answered question

2022-04-22

Simplify arcsin(cos(2x)),0x(π2)
I used the identity sin((π2)x)=cosx and I got (π2)2x

Answer & Explanation

haillarip0c9

haillarip0c9

Beginner2022-04-23Added 23 answers

arcsin(cos2x)=π2arccos(cos2x)
As 02xπ using Principal values
arccos(cos2x)=2x
If π<2x2π,arccos(cos2x)=2π2x
If π<2x<0,arccos(cos2x)=2x

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