(3p - 3q + r)(3p - q - 3r)
(6p - 3q - 3r)(3p - q - 4r)
(3p - q + 3r)(3p + q - 3r)
(3q - p + 3r)(3q - p + 3r)
Correct answer is C
9p2−q2+6qr−9r2
= 9p2−(q2−6qr+9r2)
= 9p2−(q2−3qr−3qr+9r2)
= 9p2−(q(q−3r)−3r(q−3r))
= 9p2−(q−3r)2
= (3p+(q−3r))(3p−(q−3r))
= (3p+q−3r)(3p−q+3r)
Find a positive value of α if the coordinate of the centre of a circle x2 + y\(^2...
Which of the following is not a measure of centre tendency? ...
In ΔABC above, BC is produced to D, /AB/ = /AC/ and ∠BAC = 50o. Find ∠ACD...
If y = (2x + 1)3 find dy/dx ...