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finlep [7]
2 years ago
11

Need help will mark Brainliest

Mathematics
1 answer:
Bond [772]2 years ago
5 0

Answer:

confusion?

Step-by-step explanation:

your welcome

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Verify the identity:<br> tan(x+pi/2)=-cotx<br><br> please!!
olya-2409 [2.1K]
First we use sin(a+b)= sinacosb+sinbcosa
and cos(a+b)=cosa cosb -sinasinb

tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)
and sin(x+pi/2) = sinxcospi/2 + sinpi/2cosx =cosx, 
<span>cos(x+pi/2) = cosxcospi/2- sinxsinpi/2= - sinx, 
</span> because <span>cospi/2 =0,  </span>and <span>sinpi/2=1

</span><span>=tan(x+pi/2)= sin(x+pi/2) / cos(x+pi/2)= cosx / -sinx = -1/tanx = -cotx
</span>from where <span>tan(x+pi/2)=-cotx</span> 
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3 years ago
Can someone help me please. Question: draw and label a picture of the following terms
frutty [35]

Answer:

Please see attached

Step-by-step explanation:

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2 years ago
What is 9 1/2 - 5 7/12 =​
Soloha48 [4]

Answer:

47/12, or 3 11/12

Step-by-step explanation:

9 1/2 - 5 7/12 > convert to improper fractions

19/2 - 67/12

make same denominator (12)

19/2 * 6 = 114/12

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Elodia [21]

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Step-by-step explanation:

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