Tuesday, February 13, 2018

mathematics - Mathematical Rebus II


Mathematical Rebus I


Mathematical Rebus III




Rebus' image


$$\det\frac{\partial(x,y)}{\partial(r,\varphi)}\\ \sum_{n=2}^\infty \ddot{\frac{t^n}{n!}} $$



Answer



Follow up to rand al'thor answer



The graph shows:



sec(x)



By combining the 2 other answers, we obtain:



sec + r + et = $secret$



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