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April 19, 2014

Homework Help: math-calc

Posted by joe on Sunday, October 19, 2008 at 10:07pm.

show that 1-(x/2) is the tangent line approximation to 1/sq rt(1+x) near x=0

i know the formula for apprx. is y = f(a)+f'(a)(x-a) but i don't understand how to work backwards to get this.

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