Question

tan inverse (tan 3π/4)​

Answer 1

Answer:

3pi/4 can be written as pi+pi/4

And pi+pi/4 comes in third quadrant where tanx is positive.

So above eqn. Becomes tan inverse (tan pi/4)

Which is equal to pi/4.

As tan inverse(tanx) is x under its principle values.

Hope you get your answer.