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lana [24]
2 years ago
5

Hello Please help me.

Mathematics
1 answer:
Mama L [17]2 years ago
4 0
A because the rest are just adding or multiplying
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According to ​Lambert's law​, the intensity of light from a single source on a flat surface at point P is given by Upper L equal
malfutka [58]

Answer:

(a) L = k*(1 - sin^{2}(\theta))        

(b) L reaches its maximum value when θ = 0 because cos²(0) = 1

Step-by-step explanation:

Lambert's Law is given by:

L = k*cos^{2}(\theta)   (1)

(a) We can rewrite the above equation in terms of sine function using the following trigonometric identity:

cos^{2}(\theta) + sin^{2}(\theta) = 1

cos^{2}(\theta) = 1 - sin^{2}(\theta)  (2)

By entering equation (2) into equation (1) we have the equation in terms of the sine function:

L = k*(1 - sin^{2}(\theta))        

(b) When θ = 0, we have:

L = k*cos^{2}(\theta) = k*cos^{2}(0) = k  

We know that cos(θ) is a trigonometric function, between 1 and -1 and reaches its maximun values at nπ, when n = 0,1,2,3...

Hence, L reaches its maximum value when θ = 0 because cos²(0) = 1.

I hope it helps you!

5 0
3 years ago
Read 2 more answers
Which is the inverse of the function f(x)=1/3x+5 ?
PtichkaEL [24]
To find the inverse of a function, switch the x and the y and then solve for the new y.  Like this: x= \frac{1}{3}y+5.  Subtract 5 from both sides to get x-5= \frac{1}{3}y and then multiply both sides by 3.  3(x - 5) = y.  B is your choice.
4 0
3 years ago
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Ula<br> - 4 5/8 divided by 1 1/2
bogdanovich [222]

<em>Answer:</em>

The exact form is 5/44 and decimal form is .1136

<em>Step-by-step explanation:</em>

Divide by a fraction and multiply by its reciprocal

5/8  * 2/11

Cancel the common factor 2

5/4  * 1/11

Multiply 5/4 and 1/11

<em>5/4(11)</em>

The result is

<em>5/44 or .1136</em>

6 0
3 years ago
Please help me with this question :)​
Alona [7]

Answer:

0 is the answer.

Step-by-step explanation:

3=(|x|/12) +3

3=(|x|+12(3))/12

3*12= |x|+ 36

|x|=36-36

|x|=0

x=0

7 0
2 years ago
GIVING BRAINLIEST ONLY IF 100% CORRECT-NO GUESSES NO LINKS
Ymorist [56]

Answer: the answer is option 1 i don’t know but 0.9 divided by 0.3 = 3

7 0
3 years ago
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