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Elina [12.6K]
3 years ago
7

BRAINLIEST!!! 2. Use the unit circle to find the value of cot (–90°).

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0

Answer:

cot(- 90)° = 0

Step-by-step explanation:

Using the identity

cot x = \frac{cosx}{sinx} , then

cot(- 90)° = \frac{cos(-90)}{sin(-90)} = \frac{0}{-1} = 0

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Consider the polynomial equation x(x - 3)(x + 6) (x-7) -0. Which of the following are zoros of the
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Answer:

The zeros are : 0, 3, -6, 7.

Step-by-step explanation:

Zeros of a polynomial is the values at which the polynomial becomes zero. They are also called the roots of the polynomial.

When (x - a)(x - b) = 0, we can say that either (x - a) = 0 or (x - b) = 0. At least one zero renders the whole equation to be zero.

Now, we are given that: x. (x - 3). (x + 6). (x - 7) = 0

⇒ To make the equation zero, at least one of the following should be true:

x = 0

x - 3 = 0  ⇒ x = 3

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4 0
3 years ago
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Step-by-step explanation:

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8 0
3 years ago
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Marist scholars ate a total of 16 bananas for snack. If the 34 kids in Bing-BU each ate a half of a banana for snack, which clas
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