Evaluate tan(cos ^-1 3/5) and assume that all angles are in quadrant i.

and with that, let us find the opposite side, keeping in mind that we're in the I Quadrant, and thus the opposite side is positive, just like adjacent as well,

Value of

Step-by-step explanation:

Given:

All angles are in Quadrant 1.

To find: Value of given Expression.

Let,

Now, To find

we know that,

Using right angled triangle and for

Figure is attached.

By Pythagoras theorem,

AC² = AB² + CB²

5² = AB² + 3²

AB² = 25 - 9

AB² = 16

AB = 4

So,

Therefore, Value of

The correct answer is -20y

It’s c. i’m almost sure