Question

if cot ∅ A 4/5 then the value of cot A-sinA/2tan A​

Answer 1

Answer:

Step-by-step explanation:

given cota=4/5

sina/2tana =2cosa

by taking triangle and finding the third side using pythogores theorem we get 31^1/2

so cosa=4/31^1/2

   2cosa= 8/31^1/2

by substituting the given values we get the required answer