Question

The greatest value of the function -5sinx+12cosx

Answer 1

if asinx + bcosx is given
then , maximum value of it √( a² + b²)
and minimum value of it -√( a² + b²)

now ,
here -5sinx + 12cosx given ,
a = -5
b = 12

then maximum value of it =√(5² +12²) = 13