4-2 ctg^2x*sin^2x,если sinx=-0,2. Created by annasycheva201. algebra-ru

4-2 ctg^2x*sin^2x,если sinx=-0,2...

July 2022 1 20 Report

4-2 ctg^2x*sin^2x,если sinx=-0,2

sangers1959

4 - 2 Ctg² x * Sin² x = 4 - 2 * Cos²x/Sin²x * Sin²x = 4 - 2Cos²x =
=4 - 2(1 - Sin²x) = 4 - 2 + 2Sin²x = 2 + 2*0,04= 2 + 0,08 = 2,08

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