24-06-2018
Mathematics

contestada

If f(x)=cosx, then f(x+ pi/2) is equal to
A -cosx
B 1+cosx
C sinx
D -sinx
E none of the above
Provide reasoning.

Respuesta :

akalive akalive

24-06-2018

the answer must be - cospi/2 which is not available in the option

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