1.Relation and Function
normal

જો વિધેય $f(x) = \sqrt {\ln \left( {m\sin x + 4} \right)} $ નો પ્રદેશગણ $R$ હોય તો $m$ ની ........... શક્ય પુર્ણાક કિમતો મળે.

A

$3$

B

$4$

C

$6$

D

$7$

Solution

$ln(m\sin x + 4) \ge 0 \Rightarrow m\sin x + 4 \ge 1$

$m \sin x \geq-3 \Rightarrow m \in[-3,3]$

$7$ possible integral values.

Standard 12
Mathematics

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