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7cosx-24sinx+5 find maximum value and minimum value

rohit , 7 Years ago
Grade 11
anser 1 Answers
Arun

Last Activity: 7 Years ago

If we see any function of the form
a sinx + b cos x or a sinx- b cosx
Its maximum value is
\sqrt(a²+b²)
& its minimum value is
- \sqrt(a²+b²)
Hence maximum value of the above function is
\sqrt(24²+ 7²)  +5 = 25 +5 = 30
& Its minimum value is
-25 +5 = -20

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