Question

If cos a = 4/5, then find the value of cot a - sin a/2 tan a

Answer 1

cota-sina/2tan a=22/45

Answer 2

Answer:

Step-by-step explanation:

Step-by-step explanation:

Given :  

To find : The value of  

Solution :

According to trigonometric properties,

i.e Perpendicular P=4, Hypotenuse H=5

Apply Pythagoras theorem,

We know,

Substitute the value in the expression,

Therefore,