Which of the formulae is false?
(a) \overline{}{z_{1}z_{2}}= \bar{z_{}1} \bar{z_{}2}
(b) arg\bar{z} = arg\bar{z}
(c) |\bar{z}| = |z|
(d) \overline{z_{1}+z_{2}}=\bar{z_{1}}+ \bar{z_{2}}
(e) \overline{z_{1}\bar{z}_{2}}=\bar{z_ {1}}z_{2} forz_{2}\neq 0

(2,9)

i think thats the answer i checked it on google

the answer is 15% decrease

the answer will be

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5