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O valor de 
é
Se 
e α é um arco cuja extremidade pertence
ao 2º quadrante, então α pode ser ____ π/6 rad .
Seja ABC um triângulo retângulo em B, tal que
AC = 12 cm. Se D é um ponto de 
, tal que 
= 45° , então
CD = ________ cm.
Sejam Z1 = 3 + 3i, Q e R as respectivas representações, no plano de Argand-Gauss, dos números complexos Z2 e Z3. Assim, é correto afirmar que Z1 =
Sabe-se que 
. Dessa forma, x + 2 é igual a
Analisando a figura, pode-se afirmar corretamente que o valor de x é
Read the text and answer questions
Ursula! I whispered
Yes, my darling, she said, without __________ her eyes.
What have you got in your basket? I asked. She opened her eyes, startled, and looked at me.
What do you mean? she said defensively.
There is something moving in your basket, I said.
Oh, it’s nothing. It’s just a present for somebody. She said.
Adapted from, FERGUSON, Kenneth. Read for Meaning,
Comprehension tests for First Certificate. Ed. Evans Brothers, first
Published 1975.
Read the text and choose the best response.
The verbs “whispered” and “said” underlined in the text refer to
Read the text and answer questions
Ursula! I whispered
Yes, my darling, she said, without __________ her eyes.
What have you got in your basket? I asked. She opened her eyes, startled, and looked at me.
What do you mean? she said defensively.
There is something moving in your basket, I said.
Oh, it’s nothing. It’s just a present for somebody. She said.
Adapted from, FERGUSON, Kenneth. Read for Meaning,
Comprehension tests for First Certificate. Ed. Evans Brothers, first
Published 1975.
Read the text and answer questions
Ursula! I whispered
Yes, my darling, she said, without __________ her eyes.
What have you got in your basket? I asked. She opened her eyes, startled, and looked at me.
What do you mean? she said defensively.
There is something moving in your basket, I said.
Oh, it’s nothing. It’s just a present for somebody. She said.
Adapted from, FERGUSON, Kenneth. Read for Meaning,
Comprehension tests for First Certificate. Ed. Evans Brothers, first
Published 1975.
Read the text and answer questions
Ursula! I whispered
Yes, my darling, she said, without __________ her eyes.
What have you got in your basket? I asked. She opened her eyes, startled, and looked at me.
What do you mean? she said defensively.
There is something moving in your basket, I said.
Oh, it’s nothing. It’s just a present for somebody. She said.
Adapted from, FERGUSON, Kenneth. Read for Meaning,
Comprehension tests for First Certificate. Ed. Evans Brothers, first
Published 1975.
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