Finding the Range of Trigonometric Expression

Explaining the concept by finding the range of 5 sinx + 12 cosx – 13 Comparing (5 sinx + 12 cosx) with (asinx + bcosx)a = 5b = 12√(a2 + b2) = √(52 + 122) = √(25 + 144) = √169 = 13 asinx + bcosx = √(a2 + b2)(asinx + bcosx) / √(a2 + b2) Putting values of a & b ==>5 sinx […]

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