C-10-Q061mediumsingle_mcq

$18 \cdot \sin 45^\circ$ in surd form equals—

a $9\sqrt{2}$ m
b $18\sqrt{2}$ m
c $9$ m
d $18$ m

ব্যাখ্যা

Since $\sin 45^\circ=\dfrac{1}{\sqrt{2}}$ , we get $18\cdot\dfrac{1}{\sqrt{2}}=\dfrac{18}{\sqrt{2}}=9\sqrt{2}$ m after rationalizing. Dividing $18$ by $2$ gives the coefficient $9$ .

এই অধ্যায়ের আরও প্রশ্ন

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Chapter 10: Distance and Elevation — সব প্রশ্ন দেখুন (160টি) →

$18 \cdot \sin 45^\circ$ in surd form equals—

9\sqrt{2}

18\sqrt{2}

9

18

ব্যাখ্যা

Since $\sin 45^\circ=\dfrac{1}{\sqrt{2}}$ , we get $18\cdot\dfrac{1}{\sqrt{2}}=\dfrac{18}{\sqrt{2}}=9\sqrt{2}$ m after rationalizing. Dividing $18$ by $2$ gives the coefficient $9$ .

18⋅sin⁡45∘18 \cdot \sin 45^\circ18⋅sin45∘ in surd form equals—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

18⋅sin⁡45∘18 \cdot \sin 45^\circ18⋅sin45∘ in surd form equals—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

$18 \cdot \sin 45^\circ$ in surd form equals—

$18 \cdot \sin 45^\circ$ in surd form equals—