f(x)=cos x + sin x if f=pie/2
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answer is 1
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rahulkumar1071:
how
well you written the wrong ques initially... it should be x=π/2
okay ans. fast
cosπ/2 is 0 and sinπ/2 is 1...adding them.gives 1
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Answer:
Put value of pie/ 2 in
Cosx + sinx
Then it will be cos(pie/2) + sin(pie/2)
Pie=180
Cos 90 + sin 90
0+1=1
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