1.given that sine x=5/13,find cosx-2sinex/2tanx​

Step-by-step explanation:

visit this;

https://socratic.org/questions/results-for-sinx-5-13-0-less-than-or-equal-to-x-les-than-or-equal-to-90-find-cos

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

30

step-by-step explanation:

idk

i hope i