Question

find the exact value if angles x and y are in the first quadrant. tan(x+y) if cotx=6/5 and secy=3/2

Answer 1

tan(x+y) = (tanx+tany)/(1-tanxtany)
u have to determine the values of tanx and tan y to complete it in the formula

Answer 2

i have that tanx(5/6) and tany(sqrt5/2)

Answer 3

good, just plug of them to formula above

Answer 4

so I dont need to ise the sum formula?

Answer 5

simplify it

Answer 6

but im not getting the same answer when i check the answer

Answer 7

what ur answer did u get

Answer 8

(5+6sqrt5)/(6-5sqrt5)