3 years ago

7.

Mathematics

1 answer:

anzhelika [568]3 years ago

8 0

The answer is D as said above

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Which of the following is equivalent?

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What is the exact value of arccos(−2√2) ?

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See explanation

Step-by-step explanation:

The range of the cosine function is $-1\le \cos x\le 1$

Therefore $arc \cos (-2\sqrt{2})$ is not defined.

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Step-by-step explanation:

Congruency between QS and NR can be assumed because the angles they make at points T and U are both right angles and the 6.7 seems to be indicating the same length of the lines (?)

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Step-by-step explanation:

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