Question

5/2+ 3 cosx .find the range
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Answer 1

Step-by-step explanation:

The above attachment shows the solution to the question

Answer 2

Answer:

Answer ::

Step-by-step explanation:

Given :

$\frac{5}{2} + 3cosx$

$\\ \red\bigstar\tt\: \dfrac{5+3cos}{2}$

$\huge\sf\green{As we know that }$

☞ the range of cos is [-1,1]

-1<cosx<1

-3<3cosx<3

5/2-3<5/3+3cosx<3+5/2

5-6/2<5/3+3cosx<11/2

-1/2<5/3+3cosx<11/2

$\longrightarrow$ the range will be [-1/2,11/2]