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If pqr = 1 , rst = 0 , and spr = 0, which of the following must be zero?

A. P

B. Q

C. R

D. S

E. T

1
by rrd

S is the answer and for T is can't be defined

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A. P

B. Q

C. R

D. S

E. T

by rrd

S is the answer and for T is can't be defined

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so p,r must not be 0

so in rst = 0

r can't be zero so st = 0 so s= 0 and we see it also satisfies spr = 0

SO D) S