## Conditional Trigonometric Identities – Maximum & Minimum Value

Here, you will learn conditional trigonometric identities and maximum and minimum value in trigonometry. Let’s begin – Maximum and Minimum values in Trigonometry Expressions : (i)  acos$$\theta$$ + bcos$$\theta$$ will always lie in the interval [-$$\sqrt{a^2+b^2}$$, $$\sqrt{a^2+b^2}$$] i.e. the maximum and minimum values are $$\sqrt{a^2+b^2}$$, -$$\sqrt{a^2+b^2}$$ respectively. (ii)  Minimum value of $$a^2tan^2\theta$$ + $$b^2\tan^2\theta$$ = …