Question

what is the maximum and minimum value of 10+8cosx-15sinx​

Answer 1

Answer:

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Answer 2

(x)=asinx±bcosx

as we know, range if f(x)ϵ[−

a

2

+b

2

,

a

2

+b

2

]

∴f(x)=8cos3x−15sin3x

∴ range of f(x)ϵ[−17,17]