A.
Tangent is Opp/Adj
tan = 10/24
And cotan is tan flipped so
Adj/Opp
Cot= 24/10
A.
The only possible one is 1/8 and the answer would be B. 0.125
<span>x+y=30.....(1) and x-y=2......(2) so(1)+(2)......x+y+x-y=30+2 so 2x=32...x=16 now apply x=16 in (1) so we get......16+y=30 so .......y=14</span>
I think its 149/ 490. Not sure, but pretty confident. Hope this helps.