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allsm [11]
2 years ago
13

Find the exact value of each expression, if it defined. ( if answer is undefined, enter undefined) tan (-1)

Mathematics
1 answer:
Triss [41]2 years ago
6 0

Answer:

tan(-1) \approx -0.02

Step-by-step explanation:

The given expression is

tan(-1)

The tangent of -1 is defined, it's around -0.02.

The tangent is a trigonometric function with a period of \pi, where each period is separated by a vertical asymptote which indicates that the function is not determined through all its domain, that's what the question refers to when it says "if is undefined, enter undefined".

However, at x=-1, the tangent is determined, that means, there's no asymptote on that coordinate, that's why it has a "determined value", which is -0.02 approximately.

tan(-1) \approx -0.02

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Answer:

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2 years ago
Mary has completed 8 problems of her 20 question test. How much of the test has she completed in fraction form (simplity!)
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Which equation is true when r = 7 ?
jeka57 [31]

Answer:

7 = 49 ÷ r

Step-by-step explanation:

To find the equation that is true when r = 7, we need to find a number after the equals sign that is a multiple of 7.

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7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77...

Therefore, the only answer option in which the number after the equals sign is a multiple of 7 is:

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⇒ 7 = 54 ÷ 7

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⇒ 7 = 7 ← correct!

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