conditional trigonometric identities class 11

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 $a^2tan^2\theta$ + $b^2\tan^2\theta$ = […]