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pantera1 [17]
3 years ago
8

The equation tan(x- pi/3) is equal to _____.

Mathematics
2 answers:
kherson [118]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Using the expansion

tan(x - y) = \frac{tanx-tany}{1+tanxtany}, then

tan(x - \frac{\pi }{3})

=  \frac{tanx-tan(-\frac{\pi }{3}) }{1+tanxtan(-\frac{\pi }{3}) }

note that tan( -\frac{\pi }{3}) = - tan(\frac{\pi }{3}) = - \sqrt{3}

= \frac{tanx-(-\sqrt{3}) }{1+tanx(-\sqrt{3}) }

= \frac{tanx+\sqrt{3} }{1-\sqrt{3}tanx } → B

Galina-37 [17]3 years ago
5 0

Answer:

D

Step-by-step explanation:

we can use the formula of tan(A-B) to solve this equation .

The formula is

tan(A-B)= \frac{tanA-tanB}{1+tanA.tanB}

In our question , A is x and B is \frac{\pi }{3}

so when we apply these in the question we get

tan(x-\frac{\pi }{3} )=\frac{tanx-tan\frac{\pi }{3} }{1+tanx.tan\frac{\pi }{3} }

Now since tan\frac{\pi }{3} = \sqrt{3}

we get

tan(x-\frac{\pi }{3} )=\frac{tanx-\sqrt{3}  }{1+\sqrt{3} tanx.} }

so correct option is

D

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