A function will not have any repeating x values...it can have repeating y values, just not the x ones. In other words, ur x terms have to be all different.
A. .....this is a function
B.......not a function because u have repeating x values
C......this is a function
D......not a function because u have repeating x values
Because a triangle's angles need to equal 180, you can subtract 100(30+70) and you will get 80. So 80 will be your third angle.
If you look at the graph of sin(n), you can notice that it oscillates every kpi/2 when k is odd. This oscillation proves that sin(n) diverges.
Answer:
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Step-by-step explanation:
