Common Errors in the Exams

[/0]

When graphing a normal distribution, do you have to mark the maximum coordinates and the y-axis? In one exam I've done they tell you to do this, but in class we learnt you only need the x-axis and the x-coordinate of the maximum.

[Glockmeister]

I was wondering (after making the mistake again) if it asks for an antiderivative and I add the "+c" in, do I lose marks?
Because isn't an antiderivative essentially telling you do assign the would be +c to something? And in my case I assign +c to.. +c.

You won't lose marks

Are you sure about that? Cause I'm pretty sure in Specialist you would lose marks if you leave the c when it asks for an antiderivative as it is asking for one graph, not a family of them as would be the case if there are asking for the antiderivative

[/0]

I'm just regurgitating what my teacher told me. In this case C would represent a constant.

[dcc]

Solving equations like and only finding some of the answers possible.

[bucket]

oh how would you solve that? you just reminded me that i don't know how to solve questions like that.

[Lulu]

take 'cosx' out as a common factor

cosx(cos(x) - 1) = 0 solve for cosx = 0 and cos(x) - 1 =0

[dusty_girl1144]

oh how would you solve that? you just reminded me that i don't know how to solve questions like that.

i was to embarassed to ask that ^^ so ty for asking

 

take 'cosx' out as a common factor

cosx(cos(x) - 1) = 0 solve for cosx = 0 and cos(x) - 1 =0

and ty for solving

[Lulu]

You're welcome , remember there's no such thing as a dumb question