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# Trigonometric Functions watch

1. Find the smallest positive value of θ for which these functions have a maximum values.

a) y = sin θ - 2 b) y = sin θ + 2cos θ

Could I have help on how to answer these questions?
2. (Original post by Dan Kemp)
Find the smallest positive value of θ for which these functions have a maximum values.

a) y = sin θ - 2 b) y = sin θ + 2cos θ

Could I have help on how to answer these questions?
(a) what is the smallest value of

(b) Have you done the harmonic form yet?
3. (Original post by Dan Kemp)
Find the smallest positive value of θ for which these functions have a maximum values.

a) y = sin θ - 2 b) y = sin θ + 2cos θ

Could I have help on how to answer these questions?
For a)

first you have to find that for wich sine value will be the
maximum. Then find angles giving this sine value, and
choose from them the smallest positive value.

for b)

For the maximum differentiate the function

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