Basic AOD
Question number 7 , tried differentiating the thing and got some values , but im not sure if thats correct
i graphed the function and it gives the maxima at x due to it being increasing there , what can i do to do this question
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@Apu
Note for OP
+solved @user to close the thread when your doubt is solved. Mention the user who helped you solve the doubt. This will be added to their stats.For maxima second differential should be -ve, right? ie. sin2x>0.
Does that help?
the options seem off to me though.
yeah im not sure if i can do it
is the question wrong? i end up getting pi/3 + rt3/2 as the maxima
nvm my bad, i took local maxima, global maxima would be pi itself
f(pi) > f(pi/3)
simple diff wont work as the function is still increasing at pi
so you cant use the conventional dy/dx = 0
its giving max at pi but im not sure how can i do it mathamatically ( i got it graphically)
same 😄
oh!
i guese im not famiiar with that pretty much
how does that work?
i suppose graphing is the only way
since it's strictly increasing after 2pi/3, we'd have to check whether the value at the limit was a maxima
they are not asking where the maxima is, but the value of the maxima, so i cant figure how on earth is that gonna be pi. OH! sin pi is 0
lol
the monotonously increasing thing makes sense
yeah i did that graphically but was unsure on how can i notice that im the exam
true, i always lose marks in such questions 💀
to stay safe, drawing graphs for every function might be best, and in maxima minima questions, checking the values at the ends of the domain
baaki sab depends on your luck 😆 and practice
right fair , imma do more of these , didnt pay much attention on these in 11th
thanks!!
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