Does #tan300-tan30=tan270#?
2 Answers
NO. See explanation below
Explanation:
We know that
In goniometric circle we see that 270 does not have tangent value. But let use tangent of diference to demonstrate analitically...
We know also that
Lets check the formula in our case
And identity proposed will be thrue if
Lets see:
That means
Explanation:
In fact,