Find dydx if y-sec-1-12x2-1- 0 1-2

y= ^ 1 ( 1 2 x ^ 2 1 #160;) #160; x=cosθ #160; 2 x ^ 2 1=2cos ^ 2 θ #160; 1=cos 2θ #160; y= ^ 1 ( 1 cos 2θ #160; #16 ...

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Principal Solution of Trigonometric Equation

Find dydx i...

Question

Find $\frac{d y}{d x}$ if $y = s e c^{- 1} [\frac{1}{2 x^{2} - 1}]$ , $0 < x > \frac{1}{\sqrt{2}}$

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