Answer:
the answer is 1. 794
Step-by-step explanation:
the answer is the third one
Step-by-step explanation:
the formula is :
tan (a+b) =
(tan (a) + tan (b)) / ( 1 - tan (a) . tan (b))
therefore
tan (π/5) + tan (π/2)) / (1-tan (π/5) tan (π/2))
= tan (π/5 + π/2)
6+x is an example of an expression. if it was a variable it would be 6x.