of 50 students surveyed 30 say they like algebra, 21 say they like trigonometry and 8 say they like both. how many students do not like either algebra or trigonometry?
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n(A)= like algebra =30
n(T)= like trigonometry=21
n(A and B)=8
A'= Not lke algebra
B'=Not like trigonoetry
There are 50 students , in which 43 likes either algebra or trigonometry or both.
So 7 students do not like either algebra or trigonometry or both.
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