Question

tana=1/2 tanb=1/3 then cosec(a+b)=​

Answer 1

Answer:

✓10/1

Step-by-step explanation:

given :

tan a =1/2 and tan b =1/3

then

we know that tan thita = p/b

so tan a = 1/2 then h = ✓5

and tan b = 1/3 then h = ✓10

we know that cosec thita = h/ p

so cosec (a+b)= ✓10 /1 means ✓10