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Leto [7]
3 years ago
13

Can someone help me fast please!!!!

Mathematics
1 answer:
allochka39001 [22]3 years ago
8 0

Answer:

Step-by-step explanation:

121=irrational

100= rational

99= irrational

10=rational

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evablogger [386]

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π

2

,

3

⋅

π

2

,

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⋅

π

4

,

7

⋅

π

4

Explanation:

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cot

(

x

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=

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(

x

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=

0

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x

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=

−

1

so

cos

(

x

)

=

−

sin

(

x

)

and we get

x

=

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π

4

or

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√

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