Given sinx=45 and cosx=35.

What is ratio for tanx ?

I guess you mean 4/5 and 3/5

this is a right angled triangle with side 3-4-5 so 5 is the hypotenuse

sin x = opp / hyp = 4/5 so the opposite side is 4

cos x = adj/hyp = 3/5 so the adjacent side = 3

so tan x = opp/adj = 4/3

I got 4/5 sorry if i am wrong