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goblinko [34]
3 years ago
11

Tan80+tan70/1-tan80tan70

Mathematics
1 answer:
poizon [28]3 years ago
4 0
We have the formula tan(a+b)= (tana+tanb): (1-tana x tanb)
And now we have a=80, b=70 and
(tan80+tan70): (1-tan80 x tan70)= tan(80+70)= tan150
If you write 70 for 70°, we have tan150°=1/√3
Merry Christmas
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Answer:

\frac{1}{(28)^{2} }

Step-by-step explanation:

Step 1;

Write expression

4^{-2} . 7^{-2\\\frac{\frac{1}{4^{-2} } }{y\frac{1}{7^{-2} } } }

\frac{1}{4^{2} .7^{2} }

\frac{1}{(4x7)^{2} }

\frac{1}{(28)^{2} }

8 0
2 years ago
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Hope this helped :)
8 0
3 years ago
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AlekseyPX
<span>Kedar earns $3887.50. His earnings are given by y=2200+0.0375*x where x is the amount of sales, in dollars, for the month.</span>
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2 years ago
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Bezzdna [24]

<em>Here is your answer </em>

<em> x = 17.5</em>

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