plese derive d sec^-1 x/dx=1/x√x^2-1
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D/dxsin^-1(x-1/x+1)
suppose (x-1/x+1) is p
and
d/dxsin^-1x=1/
so
d/dxsin^-1p
1/ *d/dxp
substituting the value of p
[x+1]/*d/dx x-1/x+1
x+1/*[(x+1)*1-(x-1)*1]/(x+1)^2
1/
suppose (x-1/x+1) is p
and
d/dxsin^-1x=1/
so
d/dxsin^-1p
1/ *d/dxp
substituting the value of p
[x+1]/*d/dx x-1/x+1
x+1/*[(x+1)*1-(x-1)*1]/(x+1)^2
1/
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