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Is the sentence true or false?
In order to have an inverse function for trigonometry, we restrict the domain of each function, so that it is one to one.
True
False
Determine either f(x)=sinxf\left(x\right)=\sin xf(x)=sinx, then what is the value of f−1(x)f^{-1}\left(x\right)f−1(x)?
sinx\sin xsinx
arcsinx\arcsin xarcsinx
neither
Determine either f(x)=xf\left(x\right)=xf(x)=x, then what is the value of f−1(x)f^{-1}\left(x\right)f−1(x)?
arc(arccoscosx)=cos(x)arc\left(\arccos\cos x\right)=\cos\left(x\right)arc(arccoscosx)=cos(x) is odd function.
Complete: If f(x)=tanxf\left(x\right)=\tan xf(x)=tanx, then what is the value of f−1(x)f^{-1}\left(x\right)f−1(x)?
cosx\cos xcosx
xxx
tantanx\tan\tan xtantanx
Is the number sentence true or false?
sin(0.5)=0.5\sin\left(0.5\right)=0.5sin(0.5)=0.5
Complete:
(sinx)=\left(\sin x\right)=(sinx)= ________, where −π2<x<π2-\frac{\pi}{2}<x<\frac{\pi}{2}−2π<x<2π
arccoscosx=\arccos\cos x=arccoscosx= ________.
sinsinx\sin\sin xsinsinx
arctantanx=\arctan\tan x=arctantanx= ________.
arcsin(x)=x\arcsin\left(x\right)=xarcsin(x)=x.
It is done.