Please solve q 11?
2 Answers
Find the minimum value of
The linear combination is a phase shifted and scaled sine wave, the scale determined by the magnitude of the coefficients in polar form,
Explanation:
Find the minimum value of
The linear combination of sine and cosine of the same angle is a phase shift and a scaling. We recognize the Pythagorean Triple
Let
so has a minimum of
Explanation:
Divide the equation
are the coefficients of
Let
Now,
The value of
So, the minimum value of