In -ABC - A2 - B2 - C2 -

In ABC #160; #160; #160; #160; #160; #160; #160; #160; #160; #160; #160; #160; #160; A2=s(s a)Δ #160; A2 ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Sum of n Terms

In ΔABC , A2 ...

Question

$I n Δ A B C, cot \frac{A}{2} + cot \frac{B}{2} + cot \frac{C}{2} =$

Open in App

Solution

Suggest Corrections

Similar questions

In Δ ABC, it is being given that

Δ = ∣ ∣ ∣ ∣ ∣ ∣ ∣ \begin{matrix} 1 & 1 & 1 cot \frac{A}{2} & cot \frac{B}{2} & cot \frac{C}{2} tan \frac{B}{2} + tan \frac{C}{2} & tan \frac{A}{2} + tan \frac{C}{2} & tan \frac{A}{2} + tan \frac{B}{2} \end{matrix} ∣ ∣ ∣ ∣ ∣ ∣ ∣ = 0,

In Δ A B C, the measure of ∠ A C D is 105^{\circ} .

If ∠ B = 65^{\circ}, then find ∠ A .

I n Δ A B C, \frac{b^{2} - c^{2}}{a^{2}} =

a, b

c

\frac{a}{c} =

|\begin{matrix} a^{2} & a^{2} - {(b - c)}^{2} & b c \\ b^{2} & b^{2} - {(c - a)}^{2} & c a \\ c^{2} & c^{2} - {(a - b)}^{2} & a b \end{matrix}| = (a - b) (b - c) (c - a) (a + b + c) (a^{2} + b^{2} + c^{2})

Join BYJU'S Learning Program