Question

verify that each equation is an identity

Answer 1

tan(\[\theta-45degree\])+(\[\theta+45degree\])

Answer 2

Using the special triangle rule, tan45 is 1. So I got tan(\[[(\tan \theta-1)/1+\tan \theta] + [(\tan \theta+1)/1-\tan \theta]\]

Answer 3

to get lcd cross multiply so that would be:
\[](\tan \theta-1)(1+\tan \theta) + (\tan \theta+1)(1-\tan \theta)]/(1-\tan \theta)(1+\tan \theta)\]

Answer 4

where is the equation ?
what you posted is an expression...

Answer 5

\[\tan(\theta-45°)+\tan(\theta+45°) = 2\tan2\theta \]

Answer 6

did u cross multiply correctly ?

Answer 7

no, i guess not...

Answer 8

t = tan theta