2099188.39=A-((A/1.12)*.01)
∫_0^(π/2)▒〖log(1-a^2 sin^2x)〗 dx
((X-1000)(1000)(2000))/(25^(4)(35e3))+((X-700)(1000)(2000))/(50^(4)(28e3))+((X)(1000)(2500))/(25^(4)(83e3))=0
1,8,35,156,___
50x + 40y =43(50)
e^x+x=2
(x-9)(x-3)(x-7)
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2x^2 -x
