Question

If Tan θ = 1 then 4 Sin²θ - 1 is equal to how much​

Answer 1

Answer:

I don't no but I have points

Answer 2

Answer:

4 Sin²θ - 1 = 0

Given :-

Tan θ = 1 => θ = 45°

To find :-

4 Sin²θ - 1 = 4 Sin²45° - 1

= 4(1/2)² - 1

= 4(1/4) - 1

= 1 - 1

= 0