Question
Find the value of x, when : $\log _2 x=-2$
✓
Answer
$\frac{1}{4}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Without using trigonometric tables, find the values of:
$\left(3 \cos ^2 30^{\circ}+\tan ^2 60^{\circ}\right)$
→$\left(3 \cos ^2 30^{\circ}+\tan ^2 60^{\circ}\right)$
Factorise:
$2 x^4-32$
→$2 x^4-32$
Rationalise the denominators of : $\frac{1}{\sqrt{3}-\sqrt{2}}$
→If $log_5x = y,$ find $ 5^{2y+ 3}$ in terms of $x$.
→$\text{ABC}$ is an isosceles right$-$angled triangle. Assuming of $\text{AB} = \text{BC} = x,$ find the value of each of the following trigonometric ratios $: \sin 45^\circ$
→Factorise $: a^3+ 2a^2 - a - 2$
→Find the values of $x$ and $y$ if$:(3x + 1, 2y - 7) = (9, - 9)$
→Without doing any actual division , find which of the following rational numbers have terminating decimal representation $ : '123/250\ '$
→Find the equation of the line whose$:$ slope $= 0$ and $y-$ intercept $= - 5$
→Write down the following product:
$(2-x)(4-x)$
→$(2-x)(4-x)$