if cotA + cotB + cotC = 0, then prove that (ΣtanA)^2 = Σtan^2(A)
How am I suppose to solve this question?
There's a similar question like
If
If cosecA + cosecB + cosecC =0 then prove that (ΣsinA)^2 = Σsin^2(A)
What the **** am I suppose to do? How do I solve it? I don't even know what is (ΣsinA)^2 or (ΣtanA)^2 equal to.
I only know that Σ this thing is called sigma notation or summation notation and that's just it.
I was solving trigonometry then suddenly they put this question in without explaining what sigma notation is.
How am I suppose to solve this question?
There's a similar question like
If
If cosecA + cosecB + cosecC =0 then prove that (ΣsinA)^2 = Σsin^2(A)
What the **** am I suppose to do? How do I solve it? I don't even know what is (ΣsinA)^2 or (ΣtanA)^2 equal to.
I only know that Σ this thing is called sigma notation or summation notation and that's just it.
I was solving trigonometry then suddenly they put this question in without explaining what sigma notation is.