1.Relation and Function
normal

જો $f(x) = cos(\sqrt P \,x),$ જ્યા $P = [\lambda], ([.]$ = $G.I.F.)$ અને $f(x)$ નુ આવર્તમાન  $\pi$ હોય તો, 

A

$\lambda \, \in [4, 5]$

B

$\lambda \, \in [1, 2)$

C

$\lambda \, \in [4, 5)$

D

$\lambda$ ની કોઇ કિમત શક્ય નથી

Solution

$\frac{2 \pi}{\sqrt{\mathrm{p}}}=\pi$

$\sqrt{\mathrm{p}}=2$

$\mathrm{P}=4$

$[\lambda]=4$$\quad$ Given $\mathrm{p}=[\lambda]$

$\lambda \in[4.5)$

Standard 12
Mathematics

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