1-cotºx I 2-cot x - NOISI 1 2 3 430 4) 0

cot x cot 2x-cot 2x cot3x-cot3x cotx=1

lim_(xrarrpi//4)(1-cot ^3x)/(2-cot x-cot ^3x) , is

Evaluate :lim_(x rarr(pi)/(4))(1-cot^(3)x)/(2-cot x-cot^(3)x)

cotx cot 2x - cot 2x cot 3x - cot 3x cot x = 1

int sec^(2)x cos ec^(4)x=Atan x+2cot x-(1)/(3)cot^(3)x+CBtan x-2cot x+(1)/(3)cot^(3)x+Cctan x-2cot x-(1)/(3)cot^(3)x+CDtan x+2cot x+(1)/(3)cot^(3)x+C

Prove that cotx cot2x - cot2x cot3x - cot3x cotx = 1

The values of 2cot^-1 (1/2)-cot^-1 (4/3) is