Question

show that tan(x+pi/4?) = -1

Answer 1

tan x=-4/3

you are working with a 3-4-5 right triangle in quadrant II

sin x=-4/5

cos x=3/5

csc x=-5/4

sec x=5/3

tan x=-4/3

Answer 2

Answer:

Step-by-step explanation:

tan(a+b)=tan a+tan b/1-tan a. tanb

tanpi/4=1

therefore by using above formula,

tan(x+pi/4)=(tanx+tanpi/4) /( 1-tanx.tanpi/4)=tanx+1/1-tanx