July 2022 0 3 Report

Упростите выражения:

 a)sinA / 1-cos A +1-cosA / sin A;

b)(cos2A+ sin2A+1)/cosA

Исполльзуя формулы понижения степени,упростите выражение:

[tex]sin^{2}A*cos^{2}A[/tex]

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