Grade 12Discuss with Askiitians Tutors

(1)number of critical points of f(x)=max{sinx,cosx},for all x belongs to(-2pie,2pie)
options are 5,6,7,8.

(2) let f(x)=sinx/x,where 0
(a)sin^2xxsin(sinx) , (c)sin^2x>1+xsin(sinx) , (d)none of these

vineet chatterjee

11 Years agoGrade 12

4 Answers

Ravi

11 Years ago

Plot the 2 functions, that is Sin x and Cos x on the same graph. Highlight the maximum of the two. and count the number of times it reaches its maximum value.
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vineet chatterjee

11 Years ago

i have done exactly the same and i am gettig the answer as 5.

please check once and tell me your answer and how did you get that,i need solution

vineet chatterjee

11 Years ago

i am telling this because i dont have the answers with me,so please tell me your answer and if it is not matching with my answer(my answer is 5),then tell me the approach

Ravi

11 Years ago

Yes you have the right answer 5.
I have done it the same way as mentioned in my answer before.
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