tatemelliott
03.07.2021 •
Mathematics
(sec theta - tan theta)²
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Ответ:
(sec θ - tan θ)²
= sec² θ –2 sec θ tan θ + tan² θ
Ответ:
Step-by-step explanation:
4(4x+4) =3x+7
opening the bracket
16x+16=3x+7
collecting like terms
16x-3x=7-16
13x= -9
x= -9/13