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Luda [366]
3 years ago
13

Ddasdsfasd NFLSD kmsdn.nsd

Mathematics
1 answer:
Lelechka [254]3 years ago
6 0
Same. Same. Just like me
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Prove the identity.<br> tan(x − y) + tan(z − x) + tan(y − z) = tan(x − y) tan(z − x) tan(y − z)
Viktor [21]

Step-by-step explanation:

This is known as the triple tangent identity.  Start with the fact that the three angles add up to 0.

(x − y) + (z − x) + (y − z) = 0

Subtract two terms to the other side and take the tangent:

x − y = -((z − x) + (y − z))

tan(x − y) = tan(-((z − x) + (y − z)))

Use reflection property:

tan(x − y) = -tan((z − x) + (y − z))

Now use angle sum identity:

tan(x − y) = -[tan(z − x) + tan(y − z)] / [1 − tan(z − x) tan(y − z)]

tan(x − y) = [tan(z − x) + tan(y − z)] / [tan(z − x) tan(y − z) − 1]

tan(x − y) [tan(z − x) tan(y − z) − 1] = tan(z − x) + tan(y − z)

tan(x − y) tan(z − x) tan(y − z) − tan(x − y) = tan(z − x) + tan(y − z)

tan(x − y) tan(z − x) tan(y − z) = tan(x − y) + tan(z − x) + tan(y − z)

4 0
3 years ago
Hey can you please help me with this
Tasya [4]

x=-11

Hope this helps :T

8 0
2 years ago
What's the answer to this question round 6,584,003 to the nearest 100,1000,10,000
yawa3891 [41]
100,1000,10,000 is the correct answer or maybe 0
3 0
3 years ago
You estimate that a box contains 141 envelopes the actual number of envelopes is 150 find the percent error
S_A_V [24]
0.0094% error



Divide 150/141. You get 0.94, then you need to find the percentage of that by clicking the percent button of your calculator
7 0
3 years ago
What is the percent equivalent of 3/2 using a pattern
olganol [36]
1/2 is 50 percent. if 3/2 is 1/2 X 3, 50 X 3  is equal to 150. 3/2 is 150 percent
6 0
3 years ago
Read 2 more answers
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