zeion
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Homework Statement
How does |sinx + cosx| = |sqrt(2)(x + (pi/4))| ?
Homework Equations
The Attempt at a Solution
Some kind of co-function identity?
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How does |sinx + cosx| = |sqrt(2)(x + (pi/4))| ?
Some kind of co-function identity?
Discussion
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hi zeion! 
(have a square-root: √ and a pi: π
)
do you mean |sinx + cosx| = |√2 sin(x + π/4)| ?
(have a square-root: √ and a pi: π
)do you mean |sinx + cosx| = |√2 sin(x + π/4)| ?
hint: expand sin(x + π/4)