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Dmitry [639]
3 years ago
11

(1 + sinx)(1 - sinx) = cos -x Can someone verify the trig equation?

Mathematics
1 answer:
Elenna [48]3 years ago
4 0

Answer:

steps

Step-by-step explanation:

(1 + sinx)(1 - sinx) = 1 - sin²x = cos²x   or = cos² -x

cos -x = cos x

∴ (1 + sinx)(1 - sinx) will not equal cos -x, unless x = ±360° or 0°

where cos ±360° or cos 0° = 1

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Will give extra points an brainliest pleas help ASAP
Shkiper50 [21]
(7, 1) and (1,8)
slope = (8 - 1)/(1-7) = -7/6

so
y - 1 = -7/6(x - 7)
y - 1 = -7/6 x + 49/6
y = -7/6 x + 55/6

answer
A. first one

y = -7/6 x + 55/6

4 0
4 years ago
What’s the derivative of the function: A) f(x)= 1/x , in point 2. B) f(x)= 5x^2 , in point 3
bija089 [108]

Using the power rule, the derivatives are given as follows:

a) f^{\prime}(2) = -\frac{1}{4}.

b) f^{\prime}(3) = 30.

<h3>What is the power rule for a derivative?</h3>

Suppose we have a power function given by:

f(x) = x^n

The derivative of the function is given by:

f^{\prime}(x) = n \times x^{n-1}

Item a:

The function is:

f(x) = \frac{1}{x} = x^{-1}

Then the derivative is:

f^{\prime}(x) = -x^{-2} = -\frac{1}{x^2}

When x = 2, the derivative is:

f^{\prime}(2) = -\frac{1}{4}

Item b:

The function is:

f(x) = 5x^2

Then the derivative is:

f^{\prime}(x) = 10x

When x = 3, the derivative is:

f^{\prime}(3) = 30

More can be learned about derivatives at brainly.com/question/2256078

#SPJ1

5 0
2 years ago
a 120 -ft long playground is just 15 in. on the scale drawing. what is the scale on the scale drawling?
Scrat [10]
120 feet:15 inches.
As a result, the scale drawing is 8 ft:1 in. Hope it help!
4 0
4 years ago
Read 2 more answers
For a normal distribution with mean 5 and standard deviation 6, the value 8 has a z value of?
yuradex [85]

Answer:

z = (8-5)/6

z = 0.5

3 0
3 years ago
In variable expressions how would you write the difference of p and 4, divided by 33
FrozenT [24]

Answer:(p-4)/33

Step-by-step explanation:

8 0
3 years ago
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