Question

Evaluate: tan105deg using the sum and difference formulas.

I

Answer 1

tan(a+b)=(tan a +tan b)/(1-tan a tan b)....put a =60 and b =45 and solve

Answer 2

where u got 60 and 45?

Answer 3

tan(60+45)=tan105...right

Answer 4

can u do it nw

Answer 5

tan 60 =\[\sqrt{3}\] and tan 45 =1

Answer 6

i am getting stuck at the part where it is: