यदि `(1 + tan x)(1 + tan y) = 2` हो , तो x + y =

x + y = (4n + 3) (pi) / (4), n in Z rArr ((1 + tan x) (1 + tan y)) / (tan x tan y) =

if (1- tan x)/(1+tan x) = tan y and x -y = pi/6, then x,y are respectively

(tan x) / (1) = (tan y) / (2) = (tan x) / (3) (! = 0) and x + y + z = pi

(sec x sec y + tan x tan y) ^ (2) - (sec x tan y + tan x sec y) ^ (2) = 1 Prove it

What is ( tan x + tan y ) ( 1 - cot x cot y ) + ( cot x + cot y ) ( 1- tan x tan y ) equal to ?

If cos ^ (- 1) x + cos ^ (- 1) y = (pi) / (2), tan ^ (- 1) x-tan ^ (- 1) y = 0 then x ^ (2) + xy + y ^ (2) =

यदि (x/3+1,y-2/3) = (5/3,1/3) हो, तो x और y का माना ज्ञात , कीजिये।

If tan x = (n)/(n + 1) and tan y = (1)/(2n + 1) , find tan (x + y).

Show that the orthocentre of DeltaABC having vertices A(x_1, y_1), B(x_2, y_2), C(x_3, y_3) is : (x_1 tan A + x_2 tan B + x_3 tan C)/(tan A + tan B + tan C) , (y_1 tan A + y_2 tan B + y_3 tan C)/(tan A + tan B + tan C))