Question

If y=4/sintheata+cos then minimum value of y will be

Answer 1

Answer:

-2$\sqrt{2}$

Explanation:

-$\sqrt{a^{2}+b^{2} }$$\leq$ asinx+bcosx $\leq$ $\sqrt{a^{2}+b^{2} }$

By using this formula, the minimum value of sinx+cosx is -$\sqrt{2$

Therefore, $\frac{4}{\sqrt{2} }$ = $-2\sqrt{2}$