Question

Let tan A = 7 and tan B = 9. Which is cot A + cot B?
A. 0.06
B. 0.6
C. 0.25
D. .126984

Answer 1

cot A + cot B means \[\frac 1{\tan \; A} + \frac 1{\tan \; B}\]
does that help?

Answer 2

no it didnt, I got a negative 1.06 @xlegendx

Answer 3

how can you get negative? that's addition

Answer 4

heck if I know, I plugged it in the calculator... @xlegendx

Answer 5

I think what you are suppose to do is 1/7 + 1/9 ?

Answer 6

your answer is perhaps 0.25

Answer 7

I was putting it in and replacing A and B with the numbers, I was including tan when I put it in the calculator, thanks guys! @mebs @xlegendx