lg tg 1' + lgtg2' + lgtg3' +...+lgtg89'. ' - градус. Объясните, пожалуйста, как ...

July 2022 1 14 Report

lg tg 1' + lgtg2' + lgtg3' +...+lgtg89'.
' - градус.
Объясните, пожалуйста, как делать.
Поясніть, будь ласка, як робити.

Answers & Comments

sedinalana Ctg1=tg89
ctg2=tg88
ctg3=tg87
............................
lgtg1+lgtg2+lgtg3+......+lgctg87+lgctg88+lgctg89=
lg(tg1*tg2*tg3*....*ctg3*ctg2*ctg1)=lg1=0

2 votes Thanks 1

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Aravita July 2022 | 0 Ответы

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