is optional exercise 13.5 of surface areas and volumes are imp for board exam ???As well as mathematical proof of CSA of frustum of cone and volume of cone derivations are important?
plsss tell me fast fast
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Answered by
2
yes both are imp for board exam
Anonymous:
but optional exercises are not from examination point of view
OK so now I have to do optional exercises
Answered by
3
Hey..... All the optional exercises are important as most questions are asked from it..... Derivations are not asked but remember the formulas of frustum of cone....... And vol of cone.....
Hope it helps you dear ☺️☺️
Hope it helps you dear ☺️☺️
ohk wait.....
1,2,3,4,5......all are important and 6,7 are cancelled
my pleasure and all the best for exams
hmm thx
thank you
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