Question

find the value of tan105 degree​

Answer 1

Answer:

tan105

∘

=tan(60

∘

+45

∘

)

=

1−tan60

∘

.tan45

∘

tan60

∘

+tan45

∘

=

1−

3

.1

3

+1

=−

3

−1

3

+1

=−

2

1

×(

3

+1)

2

=−(2+

3

)