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|sinx+cosx| a) b)>=root2 c) d

|sinx+cosx|


a) <=2


b)>=root2


c)<=root2


d<=1/rot2

Grade:

1 Answers

askiitian.expert- chandra sekhar
10 Points
11 years ago

Hi  Anurag,

|sinx+cosx|=|√2(sin(x+∏/4))|

-1≤(sin(x+∏/4))≤1

-√2≤√2(sin(x+∏/4))≤√2

|√2(sin(x+∏/4))|≤√2

ans: c

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