1)) tg(270° + a). sinº(180° + a) + tg315°=2)) ctg^2(360°-a)0•cos^2(270°+a)+sin27...

zerekaiyrken @zerekaiyrken

August 2022 1 4 Report

1)) tg(270° + a). sinº(180° + a) + tg315°=
2)) ctg^2(360°-a)0•cos^2(270°+a)+sin270°=

Answers & Comments

byebolat 1) -cot(a)x(-sin(a))-1=cos(a)/sin(a)xsin(a)-1=cos(a)-1
2) 0-1=-1

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