Question

SOMEONE PLEASE HELP ME OUT WITH DOUBLE ANGLES !

Answer 1

Evaluate the expression using an appropriate double angle formula.
6tan(75) / 1-tan^2(75)

Answer 2

can you use a calculator or not?

Answer 3

i have to show the working

Answer 4

please could you show me how to do it ?

Answer 5

\[\tan 2A=\frac{2\tan A}{1-\tan ^{2}A}\]

Answer 6

\[\frac{6\tan 75}{1-\tan ^{2}75}=\frac{(3)2\tan 75}{1-\tan ^{2}75}=3\tan 2A\]

Answer 7

\[2A=150, \tan(150)=-\frac{\sqrt{3}}{3}\]

Answer 8

\[3\tan 2A=3(-\frac{\sqrt{3}}{3} )= -\sqrt{3}\]