Question

Write the expression as the sine, cosine, or tangent of an angle.

tan 35° − tan 15°/1 + tan 35° tan 15°

Answer 1

Write the expression as the sine, cosine, or tangent of an angle.\[\frac{ \tan 35° − \tan 15° }{ 1 + \tan 35° \tan 15° }\]

Answer 2

Do you mean:
\[\Large \frac{ \tan 35° − \tan 15°}{ 1 + \tan 35° \tan 15° }=~?~?\]

Answer 3

See any patterns?

Answer 4

Yes, it says to write the expression as the sine, cosine, or tangent of an angle.

Answer 5

I think this would help you.

Answer 6

It's tan (A-B) right?

Answer 7

Yup

Answer 8

A = 35 and B = 15

Answer 9

Yes, where A=35 and B=15

Answer 10

So, how would you find tan (35 deg-15deg)? That's tan 20 deg.

Answer 11

So then do I just plug it into the calculator?

Answer 12

^ That is pretty much the answer.

Answer 13

It just says to write the expression.

Answer 14

I'd suggest you not use the calc. in this case. As Steve stay, rewrite the given expression in the simplest form possible. See my previous comment.

Answer 15

So the answer is tan(20) ?

Answer 16

\[\Huge\color{Coral}\checkmark\]

Answer 17

That was marked wrong

Answer 18

@3mar

Answer 19

Well, it is right...

Answer 20

why?

Answer 21

I will insert a screenshot

Answer 22

@3mar ^

Answer 23

\[\Huge\color{LightSkyBlue }ツ\]
Where is the "degree" sign?