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Her dogs are old

Her dogs are old

A teacher is speaking to her

A teacher is speaking to her

Are you ready for her

Are you ready for her

Is her house small

Is her house small

Her brother is at home

Her brother is at home

Her english is very good

Her english is very good

She is missing her friend

She is missing her friend

Her favourite food is

Her favourite food is

These hats are her hats

These hats are her hats

Meet her if you are

Meet her if you are

Is his her black

Is his her black

Her parents are the times

Her parents are the times

2 cos2x cos 2x. Cos2x 2cosx-1. Cos2x=1/2. Cos*x=x^2+1. Cos x = 1. Cos4x 1 решение уравнения. Решить уравнение cos4x+cos2x=1. X^2+2x+4. Cos x + cos 4x =2 решение. Вычислите интеграл DX/cos2x. Интеграл от cos^2. Интеграл cos 2 x DX. Как вычислить интеграл cos2x